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		<title>Бэкапы виртуальных машин в VMWare ESXi</title>
		<link>http://adminofsystem.net/2011/08/%d0%b1%d1%8d%d0%ba%d0%b0%d0%bf%d1%8b-%d0%b2%d0%b8%d1%80%d1%82%d1%83%d0%b0%d0%bb%d1%8c%d0%bd%d1%8b%d1%85-%d0%bc%d0%b0%d1%88%d0%b8%d0%bd-%d0%b2-vmware-esxi/</link>
		<comments>http://adminofsystem.net/2011/08/%d0%b1%d1%8d%d0%ba%d0%b0%d0%bf%d1%8b-%d0%b2%d0%b8%d1%80%d1%82%d1%83%d0%b0%d0%bb%d1%8c%d0%bd%d1%8b%d1%85-%d0%bc%d0%b0%d1%88%d0%b8%d0%bd-%d0%b2-vmware-esxi/#comments</comments>
		<pubDate>Wed, 31 Aug 2011 09:56:42 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Администрирование]]></category>
		<category><![CDATA[esxi]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[vmware]]></category>
		<category><![CDATA[бэкапы]]></category>

		<guid isPermaLink="false">http://adminofsystem.net/?p=454</guid>
		<description><![CDATA[Проблема резервного копирования виртуальных машин в VMWare ESXi встает очень остро, так как нет нормально инструмента для этих целей. Многие в интернете рекомендуют скрипт ghettoVCB. Я считаю этот скрипт слишком замудренным с избыточным кодом. Все можно было бы сделать проще, вот пример: #!/bin/sh sourcedir=/vmfs/volumes/datastore1 backupdir=/vmfs/volumes/nfs-backup for i in `vim-cmd vmsvc/getallvms&#124;awk '{print($1 &#34;-&#34; $2)}'`; do &#160; [...]]]></description>
			<content:encoded><![CDATA[<p>Проблема резервного копирования виртуальных машин в VMWare ESXi встает очень остро, так как нет нормально инструмента для этих целей. Многие в интернете рекомендуют скрипт ghettoVCB. Я считаю этот скрипт слишком замудренным с избыточным кодом. Все можно было бы сделать проще, вот пример:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #666666; font-style: italic;">#!/bin/sh</span><br />
<br />
<span style="color: #007800;">sourcedir</span>=<span style="color: #000000; font-weight: bold;">/</span>vmfs<span style="color: #000000; font-weight: bold;">/</span>volumes<span style="color: #000000; font-weight: bold;">/</span>datastore1<br />
<span style="color: #007800;">backupdir</span>=<span style="color: #000000; font-weight: bold;">/</span>vmfs<span style="color: #000000; font-weight: bold;">/</span>volumes<span style="color: #000000; font-weight: bold;">/</span>nfs-backup<br />
<br />
<span style="color: #000000; font-weight: bold;">for</span> i <span style="color: #000000; font-weight: bold;">in</span> <span style="color: #000000; font-weight: bold;">`</span>vim-cmd vmsvc<span style="color: #000000; font-weight: bold;">/</span>getallvms<span style="color: #000000; font-weight: bold;">|</span><span style="color: #c20cb9; font-weight: bold;">awk</span> <span style="color: #ff0000;">'{print($1 &quot;-&quot; $2)}'</span><span style="color: #000000; font-weight: bold;">`</span>; <span style="color: #000000; font-weight: bold;">do</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">if</span> <span style="color: #7a0874; font-weight: bold;">&#91;</span> <span style="color: #007800;">$i</span> <span style="color: #000000; font-weight: bold;">!</span>= <span style="color: #ff0000;">&quot;Vmid-Name&quot;</span> <span style="color: #7a0874; font-weight: bold;">&#93;</span>; <span style="color: #000000; font-weight: bold;">then</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #007800;">vmid</span>=<span style="color: #800000;">${i%%-*}</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #007800;">vmfs</span>=<span style="color: #800000;">${i#*-}</span><br />
&nbsp; &nbsp; &nbsp; &nbsp;<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #c20cb9; font-weight: bold;">mkdir</span> <span style="color: #007800;">$backupdir</span><span style="color: #000000; font-weight: bold;">/</span><span style="color: #007800;">$vmfs</span>.<span style="color: #000000; font-weight: bold;">`</span><span style="color: #c20cb9; font-weight: bold;">date</span> +<span style="color: #000000; font-weight: bold;">%</span>d.<span style="color: #000000; font-weight: bold;">%</span>m.<span style="color: #000000; font-weight: bold;">%</span>Y<span style="color: #000000; font-weight: bold;">`</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vim-cmd vmsvc<span style="color: #000000; font-weight: bold;">/</span>snapshot.create <span style="color: #007800;">$vmid</span> <span style="color: #007800;">$vmfs</span><span style="color: #000000; font-weight: bold;">@</span>snap <span style="color: #007800;">$vmfs</span><span style="color: #000000; font-weight: bold;">@</span>snap includeMemory <span style="color: #000000;">0</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">for</span> j <span style="color: #000000; font-weight: bold;">in</span> <span style="color: #000000; font-weight: bold;">`</span><span style="color: #c20cb9; font-weight: bold;">ls</span> <span style="color: #007800;">$sourcedir</span><span style="color: #000000; font-weight: bold;">/</span><span style="color: #007800;">$vmfs</span><span style="color: #000000; font-weight: bold;">`</span>; <span style="color: #000000; font-weight: bold;">do</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span style="color: #c20cb9; font-weight: bold;">cat</span> <span style="color: #007800;">$sourcedir</span><span style="color: #000000; font-weight: bold;">/</span><span style="color: #007800;">$vmfs</span><span style="color: #000000; font-weight: bold;">/</span><span style="color: #007800;">$j</span> <span style="color: #000000; font-weight: bold;">|</span> <span style="color: #c20cb9; font-weight: bold;">gzip</span> <span style="color: #000000; font-weight: bold;">&gt;</span> <span style="color: #007800;">$backupdir</span><span style="color: #000000; font-weight: bold;">/</span><span style="color: #007800;">$vmfs</span>.<span style="color: #000000; font-weight: bold;">`</span><span style="color: #c20cb9; font-weight: bold;">date</span> +<span style="color: #000000; font-weight: bold;">%</span>d.<span style="color: #000000; font-weight: bold;">%</span>m.<span style="color: #000000; font-weight: bold;">%</span>Y<span style="color: #000000; font-weight: bold;">`/</span><span style="color: #007800;">$j</span>.gz<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">done</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vim-cmd vmsvc<span style="color: #000000; font-weight: bold;">/</span>snapshot.removeall <span style="color: #007800;">$vmid</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">fi</span><br />
<span style="color: #000000; font-weight: bold;">done</span><br />
<br />
<span style="color: #7a0874; font-weight: bold;">cd</span> <span style="color: #007800;">$backupdir</span>; <span style="color: #c20cb9; font-weight: bold;">find</span> . <span style="color: #660033;">-type</span> d <span style="color: #660033;">-mtime</span> +<span style="color: #000000;">5</span> <span style="color: #660033;">-exec</span> <span style="color: #c20cb9; font-weight: bold;">rm</span> <span style="color: #660033;">-rf</span> <span style="color: #7a0874; font-weight: bold;">&#123;</span><span style="color: #7a0874; font-weight: bold;">&#125;</span> \;</div></div>
<p>/vmfs/volumes/nfs-backup &#8212; соответственно nfs диск где будут лежать бэкапы<br />
/vmfs/volumes/datastore1 &#8212; хранилище виртуальных машин</p>
<p>бэкапы старше 5 дней удаляются.</p>

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		<title>Windows XP без антивирусов</title>
		<link>http://adminofsystem.net/2011/08/windows-xp-%d0%b1%d0%b5%d0%b7-%d0%b0%d0%bd%d1%82%d0%b8%d0%b2%d0%b8%d1%80%d1%83%d1%81%d0%be%d0%b2/</link>
		<comments>http://adminofsystem.net/2011/08/windows-xp-%d0%b1%d0%b5%d0%b7-%d0%b0%d0%bd%d1%82%d0%b8%d0%b2%d0%b8%d1%80%d1%83%d1%81%d0%be%d0%b2/#comments</comments>
		<pubDate>Wed, 17 Aug 2011 07:56:48 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Windows]]></category>
		<category><![CDATA[windows xp]]></category>
		<category><![CDATA[антивирус]]></category>
		<category><![CDATA[реестр]]></category>

		<guid isPermaLink="false">http://adminofsystem.net/?p=451</guid>
		<description><![CDATA[«Белый список» Основываясь на «белом списке», можно сделать не плохую защиту от малвари. Чтобы его создать нужно выполнить, как минимум, два шага: В ветке реестра HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVerson\Policies\Explorer нужно создать параметр RestrictRun типа DWORD (REG_DWORD) со значением 1. В ветке HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\ создать ключ RestrictRun, а в нем параметр 01 типа STRING (REG_SZ) со значением regedit.exe. Чтобы изменения [...]]]></description>
			<content:encoded><![CDATA[<h3>«Белый список»</h3>
<p>Основываясь на «белом списке», можно сделать не плохую защиту от малвари. Чтобы его создать нужно выполнить, как минимум, два шага:</p>
<p>    В ветке реестра HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVerson\Policies\Explorer нужно создать параметр RestrictRun типа DWORD (REG_DWORD) со значением 1.<br />
    В ветке HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\ создать ключ RestrictRun, а в нем параметр 01 типа STRING (REG_SZ) со значением regedit.exe.</p>
<p>Чтобы изменения вступили в силу, нужно перезагрузить компьютер.<br />
ВАЖНО! Если выполнить пункт 1, но НЕ выполнить пункт 2, то после перезагрузки вы не сможете запустить никакую программу. Чтобы это исправить, вам нужно будет войти под другим пользователем с админскими правами, открыть редактор реестра, найти в ветку HKEY_USERS, выделить ее, выбрать меню Файл -> Загрузить куст&#8230;, в диалоге открытия файла найти файл NTUSER.DATв каталоге юзера, под именем которого был сделан этот косяк, и нажать кнопку «Открыть». После чего найти и удалить параметр RestrictRun либо присвоить ему значение 0, а потом перезагрузиться.</p>
<p>В дальнейшем можно добавлять программы в HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\RestrictRun аналогично пункту 2. При этом перезагрузка уже не нужна, изменения вступают в силу сразу.<br />
Чтобы не лезть в редактор реестра каждый раз, я создал reg-файл, в который занес список программ и в дальнейшем, по мере необходимости, подправлял его, а после правки запускал.</p>
<p>Ниже приведу небольшой кусочек этого файла:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">Windows Registry Editor Version <span style="color: #000000;">5.00</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #ff0000;">&quot;RestrictRun&quot;</span>=dword:00000001<br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\RestrictRun<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #ff0000;">&quot;0&quot;</span>=<span style="color: #ff0000;">&quot;regedit.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;1&quot;</span>=<span style="color: #ff0000;">&quot;notepad.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;2&quot;</span>=<span style="color: #ff0000;">&quot;wupdmgr.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;3&quot;</span>=<span style="color: #ff0000;">&quot;cleanmgr.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;4&quot;</span>=<span style="color: #ff0000;">&quot;wordpad.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;5&quot;</span>=<span style="color: #ff0000;">&quot;calc.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;6&quot;</span>=<span style="color: #ff0000;">&quot;mstsc.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;7&quot;</span>=<span style="color: #ff0000;">&quot;taskmgr.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;8&quot;</span>=<span style="color: #ff0000;">&quot;7zFM.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;9&quot;</span>=<span style="color: #ff0000;">&quot;7zG.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;10&quot;</span>=<span style="color: #ff0000;">&quot;7z.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;11&quot;</span>=<span style="color: #ff0000;">&quot;firefox.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;12&quot;</span>=<span style="color: #ff0000;">&quot;java.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;13&quot;</span>=<span style="color: #ff0000;">&quot;FlashUtil10d.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;14&quot;</span>=<span style="color: #ff0000;">&quot;NPSWF32_FlashUtil.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;15&quot;</span>=<span style="color: #ff0000;">&quot;thunderbird.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;16&quot;</span>=<span style="color: #ff0000;">&quot;soffice.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;17&quot;</span>=<span style="color: #ff0000;">&quot;soffice.bin&quot;</span><br />
<span style="color: #ff0000;">&quot;18&quot;</span>=<span style="color: #ff0000;">&quot;python.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;19&quot;</span>=<span style="color: #ff0000;">&quot;sbase.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;20&quot;</span>=<span style="color: #ff0000;">&quot;scalc.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;21&quot;</span>=<span style="color: #ff0000;">&quot;sdraw.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;22&quot;</span>=<span style="color: #ff0000;">&quot;simpress.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;23&quot;</span>=<span style="color: #ff0000;">&quot;smath.exe&quot;</span><br />
<span style="color: #ff0000;">&quot;24&quot;</span>=<span style="color: #ff0000;">&quot;swriter.exe&quot;</span></div></div>

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		<title>Как проверить запущен ли perl скрипт?</title>
		<link>http://adminofsystem.net/2011/08/%d0%ba%d0%b0%d0%ba-%d0%bf%d1%80%d0%be%d0%b2%d0%b5%d1%80%d0%b8%d1%82%d1%8c-%d0%b7%d0%b0%d0%bf%d1%83%d1%89%d0%b5%d0%bd-%d0%bb%d0%b8-perl-%d1%81%d0%ba%d1%80%d0%b8%d0%bf%d1%82/</link>
		<comments>http://adminofsystem.net/2011/08/%d0%ba%d0%b0%d0%ba-%d0%bf%d1%80%d0%be%d0%b2%d0%b5%d1%80%d0%b8%d1%82%d1%8c-%d0%b7%d0%b0%d0%bf%d1%83%d1%89%d0%b5%d0%bd-%d0%bb%d0%b8-perl-%d1%81%d0%ba%d1%80%d0%b8%d0%bf%d1%82/#comments</comments>
		<pubDate>Wed, 17 Aug 2011 07:54:09 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[perl]]></category>
		<category><![CDATA[зомби]]></category>

		<guid isPermaLink="false">http://adminofsystem.net/?p=449</guid>
		<description><![CDATA[Очень актуальный вопрос, особенно когда планируется запуск скрипта для обработки какой-либо продолжительной задачи, по расписанию. Рекомендую давно проверенную функцию для unix систем. Функция требует модуля: File::IO; (входит в стандартный дистриб). Вызывать функцию необходимо в самом начале скрипта (сразу после загрузки модулей), так: use IO::File; openPidFile&#40;'.mypid'&#41;; sub openPidFile &#123; my $file=shift;# имя pid файла return 0 [...]]]></description>
			<content:encoded><![CDATA[<p>Очень актуальный вопрос, особенно когда планируется запуск скрипта для обработки какой-либо продолжительной задачи, по расписанию.</p>
<p>Рекомендую давно проверенную функцию для unix систем.</p>
<p>Функция требует модуля: File::IO; (входит в стандартный дистриб). Вызывать функцию необходимо в самом начале скрипта (сразу после загрузки модулей), так:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">use IO::File;<br />
openPidFile<span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #ff0000;">'.mypid'</span><span style="color: #7a0874; font-weight: bold;">&#41;</span>;<br />
sub openPidFile <span style="color: #7a0874; font-weight: bold;">&#123;</span><br />
my <span style="color: #007800;">$file</span>=<span style="color: #7a0874; font-weight: bold;">shift</span>;<span style="color: #666666; font-style: italic;"># имя pid файла</span><br />
<span style="color: #7a0874; font-weight: bold;">return</span> <span style="color: #000000;">0</span> <span style="color: #000000; font-weight: bold;">if</span> $^O eq <span style="color: #ff0000;">'MSWin32'</span>;<span style="color: #666666; font-style: italic;"># не создаем на win машинах</span><br />
<span style="color: #000000; font-weight: bold;">if</span><span style="color: #7a0874; font-weight: bold;">&#40;</span>-e <span style="color: #007800;">$file</span><span style="color: #7a0874; font-weight: bold;">&#41;</span> <span style="color: #7a0874; font-weight: bold;">&#123;</span><span style="color: #666666; font-style: italic;"># файл существует, пытаемся прочитать</span><br />
my <span style="color: #007800;">$fh</span>=IO::File-<span style="color: #000000; font-weight: bold;">&gt;</span>new<span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #007800;">$file</span><span style="color: #7a0874; font-weight: bold;">&#41;</span> <span style="color: #000000; font-weight: bold;">||</span> <span style="color: #7a0874; font-weight: bold;">return</span>;<br />
my <span style="color: #007800;">$pid</span>=<span style="color: #000000; font-weight: bold;">&lt;</span><span style="color: #007800;">$fh</span><span style="color: #000000; font-weight: bold;">&gt;</span>;<br />
<span style="color: #666666; font-style: italic;"># скрипт уже работает, если kill 0 возвращает true</span><br />
<span style="color: #666666; font-style: italic;"># при этом по kill (0,pid) процессор не убивается, а проверяется</span><br />
<span style="color: #666666; font-style: italic;"># на наличие в таб.процессов</span><br />
die <span style="color: #ff0000;">&quot;Script already running with PID <span style="color: #007800;">$pid</span>&quot;</span> <span style="color: #000000; font-weight: bold;">if</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #c20cb9; font-weight: bold;">kill</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">0</span>,<span style="color: #007800;">$pid</span><span style="color: #7a0874; font-weight: bold;">&#41;</span><span style="color: #7a0874; font-weight: bold;">&#41;</span>;<br />
<span style="color: #666666; font-style: italic;"># если на предыдущей строке не &quot;умерли&quot;, значит выводим сообщени</span><br />
<span style="color: #666666; font-style: italic;"># что проц. &quot;зомби&quot;, и удаляем pid-файл</span><br />
warn <span style="color: #ff0000;">&quot;Removing PID file for defunct script process <span style="color: #007800;">$pid</span>.<span style="color: #000099; font-weight: bold;">\n</span>&quot;</span>;<br />
die <span style="color: #ff0000;">&quot;Can't unlink PID file <span style="color: #007800;">$file</span>&quot;</span> unless <span style="color: #660033;">-w</span> <span style="color: #007800;">$file</span> <span style="color: #000000; font-weight: bold;">&amp;&amp;</span> <span style="color: #c20cb9; font-weight: bold;">unlink</span> <span style="color: #007800;">$file</span>;<br />
<span style="color: #7a0874; font-weight: bold;">&#125;</span><br />
<br />
<span style="color: #666666; font-style: italic;"># если досюда дошли, значит либо новый запуск, либо убрали &quot;зомбака&quot;.</span><br />
<br />
my <span style="color: #007800;">$fh</span>=IO::File-<span style="color: #000000; font-weight: bold;">&amp;</span>gt;new<span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #007800;">$file</span>,O_WRONLY<span style="color: #000000; font-weight: bold;">|</span>O_CREAT<span style="color: #000000; font-weight: bold;">|</span>O_EXCL,0644<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
or die <span style="color: #ff0000;">&quot;Can't create <span style="color: #007800;">$file</span>: $!<span style="color: #000099; font-weight: bold;">\n</span>&quot;</span>;<br />
<span style="color: #666666; font-style: italic;"># вносим в pid файл id текущего процесса</span><br />
print <span style="color: #007800;">$fh</span> <span style="color: #007800;">$$</span>;<br />
<span style="color: #7a0874; font-weight: bold;">&#125;</span></div></div>
<p>Я бы еще рекомендовал вставлять в блок END (в конце программы), следующий код:<br />
END {unlink &#171;.mypid&#187; if $pid==$$;};# при этом $pid определять после вызова процедуры openPidFile!</p>

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		<title>Двухнодовый кластер MySQL на FreeBSD</title>
		<link>http://adminofsystem.net/2011/08/%d0%b4%d0%b2%d1%83%d1%85%d0%bd%d0%be%d0%b4%d0%be%d0%b2%d1%8b%d0%b9-%d0%ba%d0%bb%d0%b0%d1%81%d1%82%d0%b5%d1%80-mysql-%d0%bd%d0%b0-freebsd/</link>
		<comments>http://adminofsystem.net/2011/08/%d0%b4%d0%b2%d1%83%d1%85%d0%bd%d0%be%d0%b4%d0%be%d0%b2%d1%8b%d0%b9-%d0%ba%d0%bb%d0%b0%d1%81%d1%82%d0%b5%d1%80-mysql-%d0%bd%d0%b0-freebsd/#comments</comments>
		<pubDate>Wed, 17 Aug 2011 07:49:16 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[FreeBSD]]></category>
		<category><![CDATA[cluster]]></category>
		<category><![CDATA[mysql]]></category>
		<category><![CDATA[node]]></category>

		<guid isPermaLink="false">http://adminofsystem.net/?p=445</guid>
		<description><![CDATA[Минимальные требования для кластера mysql это два сервера для данных и один сервер для управления. Сервер управления нужен лишь во время запуска кластера, но желательно держать его постоянно включенным. Итого требуется 3 физических компьютера, либо 3 виртуальные машины на двух физических серверах. Пусть ноды с данными будут node1.host.ru и node2.host.ru, а управляющая нода mgmt.host.ru. DNS [...]]]></description>
			<content:encoded><![CDATA[<p>Минимальные требования для кластера mysql это два сервера для данных и один сервер для управления. Сервер управления нужен лишь во время запуска кластера, но желательно держать его постоянно включенным. Итого требуется 3 физических компьютера, либо 3 виртуальные машины на двух физических серверах.</p>
<p>Пусть ноды с данными будут node1.host.ru и node2.host.ru, а управляющая нода mgmt.host.ru. DNS настроен, все ноды видят друг друга как по IP так и по FQDN. Так же необходимо чтобы на нодах данных был открыт порт 3306 для всех нод-участников кластера, а на ноде управления открыт порт 1186.</p>
<p><span id="more-445"></span></p>
<p>Допустим IP адреса у серверов такие:</p>
<p>node1 192.168.1.1<br />
node2 192.168.1.2<br />
mgmt 192.168.1.3</p>
<p>Добавим кластерную конфигурацию, создадим конфигурационный файл /etc/my.cnf со следующими парамметрами:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #7a0874; font-weight: bold;">&#91;</span>mysqld<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
ndbcluster<br />
ndb-connectstring=<span style="color: #ff0000;">'host=192.168.1.3:1186'</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>mysql_cluster<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
ndb-connectstring=<span style="color: #ff0000;">'host=192.168.1.3:1186'</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>DB DEFAULT<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
DataMemory: 500M<br />
IndexMemory: 100M</div></div>
<p>Далее создадим на каждой ноде каталог /var/lib/mysql-cluster/<br />
Ставим из портов /usr/ports/misc/compat6x</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #c20cb9; font-weight: bold;">make</span><br />
<span style="color: #c20cb9; font-weight: bold;">make</span> <span style="color: #c20cb9; font-weight: bold;">install</span><br />
rehash</div></div>
<p>Создаем пользователя и группу mysql</p>
<p>Скачиваем последнюю версию дистрибутива 5.0 с сайта разработчика (в версиях 5.1 и 6.0 кластерная составляющая отсутствует, к тому же в коллекции портов FreeBSD даже в версии 5.0 ее тоже нет) и распаковываем архив в /usr/local/</p>
<p>переименовываем папку в mysql чтобы получилось /usr/local/mysql<br />
идем туда и создаем системные базы данных</p>
<p>scripts/mysql_install_db &#8212;user=mysql</p>
<p>Меняем права на папки (находясь в каталоге /usr/local/mysql):</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #c20cb9; font-weight: bold;">chown</span> <span style="color: #660033;">-R</span> root .<br />
<span style="color: #c20cb9; font-weight: bold;">chown</span> <span style="color: #660033;">-R</span> mysql data<br />
<span style="color: #c20cb9; font-weight: bold;">chgrp</span> <span style="color: #660033;">-R</span> mysql .</div></div>
<p>копируем стартстопный скрипт</p>
<p>cp support-files/mysql.server /usr/local/etc/rc.d/mysql.server</p>
<p>Запускаем его</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>etc<span style="color: #000000; font-weight: bold;">/</span>rc.d<span style="color: #000000; font-weight: bold;">/</span>mysql.server start</div></div>
<p>создаем файл etc/rc.local и добавляем туда скрипты старта кластера</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>mysql<span style="color: #000000; font-weight: bold;">/</span>bin<span style="color: #000000; font-weight: bold;">/</span>ndbd<br />
<span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>etc<span style="color: #000000; font-weight: bold;">/</span>rc.d<span style="color: #000000; font-weight: bold;">/</span>mysql.server start</div></div>
<p>Меняем пароли root сервера mysql:</p>
<p>node1:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>mysql<span style="color: #000000; font-weight: bold;">/</span>bin<span style="color: #000000; font-weight: bold;">/</span>mysqladmin <span style="color: #660033;">-u</span> root <span style="color: #660033;">-h</span> node1.domain.ru password пароль<br />
<span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>mysql<span style="color: #000000; font-weight: bold;">/</span>bin<span style="color: #000000; font-weight: bold;">/</span>mysqladmin <span style="color: #660033;">-u</span> root password пароль</div></div>
<p>node2:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>mysql<span style="color: #000000; font-weight: bold;">/</span>bin<span style="color: #000000; font-weight: bold;">/</span>mysqladmin <span style="color: #660033;">-u</span> root <span style="color: #660033;">-h</span> node2.domain.ru password пароль<br />
<span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>mysql<span style="color: #000000; font-weight: bold;">/</span>bin<span style="color: #000000; font-weight: bold;">/</span>mysqladmin <span style="color: #660033;">-u</span> root password пароль</div></div>
<p>Оставим пока сервера данных и займемся нодой управления:</p>
<p>Ставим из портов /usr/ports/misc/compat6x</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #c20cb9; font-weight: bold;">make</span><br />
<span style="color: #c20cb9; font-weight: bold;">make</span> <span style="color: #c20cb9; font-weight: bold;">install</span><br />
rehash</div></div>
<p>Нам нужны консоль и демон управления ndb_mgm и ndb_mgmd соответственно. Взять их можно из архива дистрибутива mysql в каталоге /bin. Распаковываем эти два файла в /usr/local/bin</p>
<p>Создаем каталог /var/lib/mysql-cluster/ и создаем в нем конфигурационный файл для управления config.ini:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #7a0874; font-weight: bold;">&#91;</span>NDBD DEFAULT<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #007800;">NoOfReplicas</span>=<span style="color: #000000;">2</span><br />
<span style="color: #007800;">TimeBetweenWatchDogCheck</span>= <span style="color: #000000;">30000</span><br />
<span style="color: #007800;">MaxNoOfOrderedIndexes</span>= <span style="color: #000000;">512</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>MYSQLD DEFAULT<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>NDB_MGMD DEFAULT<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>TCP DEFAULT<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>NDB_MGMD<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #007800;">HostName</span>=192.168.1.3<br />
<span style="color: #007800;">DataDir</span>= <span style="color: #000000; font-weight: bold;">/</span>var<span style="color: #000000; font-weight: bold;">/</span>lib<span style="color: #000000; font-weight: bold;">/</span>mysql-cluster<br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>NDBD<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #007800;">HostName</span>=192.168.1.1<br />
<span style="color: #007800;">DataDir</span>= <span style="color: #000000; font-weight: bold;">/</span>var<span style="color: #000000; font-weight: bold;">/</span>lib<span style="color: #000000; font-weight: bold;">/</span>mysql-cluster<br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>NDBD<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #007800;">HostName</span>=192.168.1.2<br />
<span style="color: #007800;">DataDir</span>=<span style="color: #000000; font-weight: bold;">/</span>var<span style="color: #000000; font-weight: bold;">/</span>lib<span style="color: #000000; font-weight: bold;">/</span>mysql-cluster<br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>MYSQLD<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>MYSQLD<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>MYSQLD<span style="color: #7a0874; font-weight: bold;">&#93;</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>MYSQLD<span style="color: #7a0874; font-weight: bold;">&#93;</span></div></div>
<p>Стартуем демон управления(для автозапуска при загрузке сервера эту строку нужно добавить в /etc/rc.local):</p>
<p>#/usr/local/bin/ndb_mgmd -f /var/lib/mysql-cluster/config.ini</p>
<p>Запускаем проверку работоспособности консоли:</p>
<p>/usr/local/bin/ndb_mgm</p>
<p>в окне приглашения вводим show, и видим следующую картину:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">Connected to Management Server at: localhost:<span style="color: #000000;">1186</span><br />
Cluster Configuration<br />
<span style="color: #660033;">---------------------</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>ndbd<span style="color: #7a0874; font-weight: bold;">&#40;</span>NDB<span style="color: #7a0874; font-weight: bold;">&#41;</span><span style="color: #7a0874; font-weight: bold;">&#93;</span> <span style="color: #000000;">2</span> node<span style="color: #7a0874; font-weight: bold;">&#40;</span>s<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">3</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span>not connected, accepting connect from 192.168.1.1<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">4</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span>not connected, accepting connect from 192.168.1.2<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>ndb_mgmd<span style="color: #7a0874; font-weight: bold;">&#40;</span>MGM<span style="color: #7a0874; font-weight: bold;">&#41;</span><span style="color: #7a0874; font-weight: bold;">&#93;</span> <span style="color: #000000;">2</span> node<span style="color: #7a0874; font-weight: bold;">&#40;</span>s<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">1</span> <span style="color: #000000; font-weight: bold;">@</span>192.168.1.3 <span style="color: #7a0874; font-weight: bold;">&#40;</span>Version: 5.0.85<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>mysqld<span style="color: #7a0874; font-weight: bold;">&#40;</span>API<span style="color: #7a0874; font-weight: bold;">&#41;</span><span style="color: #7a0874; font-weight: bold;">&#93;</span> <span style="color: #000000;">4</span> node<span style="color: #7a0874; font-weight: bold;">&#40;</span>s<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">5</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span>not connected, accepting connect from any host<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">6</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span>not connected, accepting connect from any host<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">7</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span>not connected, accepting connect from any host<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">8</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span>not connected, accepting connect from any host<span style="color: #7a0874; font-weight: bold;">&#41;</span></div></div>
<p>Это означает что конфигурационный файл настроен верно, но ноды данных еще не работают в кластере. Вернемся к нодам данных. На каждой из них останавливаем mysql и инициализируем кластер и перезапускаем сервер:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>etc<span style="color: #000000; font-weight: bold;">/</span>rc.d<span style="color: #000000; font-weight: bold;">/</span>mysql.server stop<br />
<span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>mysql<span style="color: #000000; font-weight: bold;">/</span>bin<span style="color: #000000; font-weight: bold;">/</span>ndbd <span style="color: #660033;">--initial</span><br />
<span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>etc<span style="color: #000000; font-weight: bold;">/</span>rc.d<span style="color: #000000; font-weight: bold;">/</span>mysql.server start</div></div>
<p>На ноде управления снова проверяем работу кластера через ndb_mgm:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #666666;">mgmt# </span><span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>bin<span style="color: #000000; font-weight: bold;">/</span>ndb_mgm<br />
<span style="color: #660033;">--</span> NDB Cluster <span style="color: #660033;">--</span> Management Client <span style="color: #660033;">--</span><br />
ndb_mgm<span style="color: #000000; font-weight: bold;">&amp;</span>gt; show<br />
Connected to Management Server at: localhost:<span style="color: #000000;">1186</span><br />
<br />
Cluster Configuration<br />
<span style="color: #660033;">---------------------</span><br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>ndbd<span style="color: #7a0874; font-weight: bold;">&#40;</span>NDB<span style="color: #7a0874; font-weight: bold;">&#41;</span><span style="color: #7a0874; font-weight: bold;">&#93;</span> <span style="color: #000000;">2</span> node<span style="color: #7a0874; font-weight: bold;">&#40;</span>s<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">2</span> <span style="color: #000000; font-weight: bold;">@</span>192.168.1.1 <span style="color: #7a0874; font-weight: bold;">&#40;</span>Version: 5.0.85, Nodegroup: <span style="color: #000000;">0</span>, Master<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">3</span> <span style="color: #000000; font-weight: bold;">@</span>192.168.1.2 <span style="color: #7a0874; font-weight: bold;">&#40;</span>Version: 5.0.85, Nodegroup: <span style="color: #000000;">0</span><span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>ndb_mgmd<span style="color: #7a0874; font-weight: bold;">&#40;</span>MGM<span style="color: #7a0874; font-weight: bold;">&#41;</span><span style="color: #7a0874; font-weight: bold;">&#93;</span> <span style="color: #000000;">1</span> node<span style="color: #7a0874; font-weight: bold;">&#40;</span>s<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">1</span> <span style="color: #000000; font-weight: bold;">@</span>192.168.1.3 <span style="color: #7a0874; font-weight: bold;">&#40;</span>Version: 5.0.85<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<br />
<span style="color: #7a0874; font-weight: bold;">&#91;</span>mysqld<span style="color: #7a0874; font-weight: bold;">&#40;</span>API<span style="color: #7a0874; font-weight: bold;">&#41;</span><span style="color: #7a0874; font-weight: bold;">&#93;</span> <span style="color: #000000;">4</span> node<span style="color: #7a0874; font-weight: bold;">&#40;</span>s<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">4</span> <span style="color: #000000; font-weight: bold;">@</span>192.168.1.1 <span style="color: #7a0874; font-weight: bold;">&#40;</span>Version: 5.0.85<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">5</span> <span style="color: #000000; font-weight: bold;">@</span>192.168.1.2 <span style="color: #7a0874; font-weight: bold;">&#40;</span>Version: 5.0.85<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">6</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span>not connected, accepting connect from any host<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #007800;">id</span>=<span style="color: #000000;">7</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span>not connected, accepting connect from any host<span style="color: #7a0874; font-weight: bold;">&#41;</span></div></div>
<p>Если в строках id1 id2 id3 id4 и id5 видно работающие, отвечающие демоны как это видно выше, то все ок и кластер работает. Если нет &#8212; еще раз смотрим эту документацию.</p>
<p>Проверяем отказоустойчивость кластера:</p>
<p>Допустим на первой ноде заходим в mysql и создаем табличку в базе test:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #666666; font-style: italic;">#/usr/local/mysql/bin/mysql -u root -pпароль</span><br />
Welcome to the MySQL monitor. Commands end with ; or \g.<br />
Your MySQL connection <span style="color: #c20cb9; font-weight: bold;">id</span> is <span style="color: #000000;">3</span><br />
Server version: 5.0.85 MySQL Community Server <span style="color: #7a0874; font-weight: bold;">&#40;</span>GPL<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
Type <span style="color: #ff0000;">'help;'</span> or <span style="color: #ff0000;">'\h'</span> <span style="color: #000000; font-weight: bold;">for</span> help. Type <span style="color: #ff0000;">'\c'</span> to <span style="color: #c20cb9; font-weight: bold;">clear</span> the current input statement.<br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; use <span style="color: #7a0874; font-weight: bold;">test</span>;<br />
Database changed<br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; CREATE TABLE clustered <span style="color: #7a0874; font-weight: bold;">&#40;</span>i INT<span style="color: #7a0874; font-weight: bold;">&#41;</span> <span style="color: #007800;">ENGINE</span>=NDBCLUSTER;<br />
Query OK, <span style="color: #000000;">0</span> rows affected <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">1.53</span> sec<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; INSERT INTO clustered <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #7a0874; font-weight: bold;">&#41;</span> VALUES <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">1</span><span style="color: #7a0874; font-weight: bold;">&#41;</span>;<br />
Query OK, <span style="color: #000000;">1</span> row affected <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">0.02</span> sec<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; SELECT <span style="color: #000000; font-weight: bold;">*</span> FROM clustered;<br />
+------+<br />
<span style="color: #000000; font-weight: bold;">|</span> i <span style="color: #000000; font-weight: bold;">|</span><br />
+------+<br />
<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #000000;">1</span> <span style="color: #000000; font-weight: bold;">|</span><br />
+------+<br />
<span style="color: #000000;">1</span> row <span style="color: #000000; font-weight: bold;">in</span> <span style="color: #000000; font-weight: bold;">set</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">0.01</span> sec<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; <span style="color: #7a0874; font-weight: bold;">exit</span><br />
Bye</div></div>
<p>Теперь на второй ноде делаем SELECT из базы test:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #666666;">node2# </span><span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>mysql<span style="color: #000000; font-weight: bold;">/</span>bin<span style="color: #000000; font-weight: bold;">/</span>mysql <span style="color: #660033;">-u</span> root -pпароль<br />
Welcome to the MySQL monitor. Commands end with ; or \g.<br />
Your MySQL connection <span style="color: #c20cb9; font-weight: bold;">id</span> is <span style="color: #000000;">3</span><br />
Server version: 5.0.85 MySQL Community Server <span style="color: #7a0874; font-weight: bold;">&#40;</span>GPL<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
Type <span style="color: #ff0000;">'help;'</span> or <span style="color: #ff0000;">'\h'</span> <span style="color: #000000; font-weight: bold;">for</span> help. Type <span style="color: #ff0000;">'\c'</span> to <span style="color: #c20cb9; font-weight: bold;">clear</span> the current input statement.<br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; use <span style="color: #7a0874; font-weight: bold;">test</span>;<br />
Database changed<br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; SELECT <span style="color: #000000; font-weight: bold;">*</span> FROM clustered;<br />
+------+<br />
<span style="color: #000000; font-weight: bold;">|</span> i <span style="color: #000000; font-weight: bold;">|</span><br />
+------+<br />
<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #000000;">1</span> <span style="color: #000000; font-weight: bold;">|</span><br />
+------+<br />
<span style="color: #000000;">1</span> row <span style="color: #000000; font-weight: bold;">in</span> <span style="color: #000000; font-weight: bold;">set</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">0.02</span> sec<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; <span style="color: #7a0874; font-weight: bold;">exit</span><br />
Bye</div></div>
<p>Как видим, на второй ноде у нас уже есть данные, которые были на первой, а значит кластер работает. Можно еще проверить записав в таблицу значение на второй ноде и запустить SELECT на первой &#8212; увидим все данные.</p>
<p>Теперь перезапустим например node2<br />
при этом пока нода будет перезагружаться в ndb_mgm мы последовательно будем видеть такие ее состояния:<br />
нода выключена:</p>
<p>id=3 (not connected, accepting connect from 192.168.1.2)</p>
<p>потом когда mysql на ней запустится станет:</p>
<p>id=3 @192.168.1.2 (Version: 5.0.85, starting, Nodegroup: 0)</p>
<p>потом когда кластер войдет в рабочий режим:</p>
<p>id=3 @192.168.1.2 (Version: 5.0.85, Nodegroup: 0)</p>
<p>Теперь можно проверить работу баз при отказе ноды. Для этого выключим одну из нод из сети, а на второй ноде подключаемся к mysql и дописываем в таблицу еще одно значение:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #666666; font-style: italic;">#/usr/local/mysql/bin/mysql -u root -pпароль</span><br />
Welcome to the MySQL monitor. Commands end with ; or \g.<br />
Your MySQL connection <span style="color: #c20cb9; font-weight: bold;">id</span> is <span style="color: #000000;">3</span><br />
Server version: 5.0.85 MySQL Community Server <span style="color: #7a0874; font-weight: bold;">&#40;</span>GPL<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
Type <span style="color: #ff0000;">'help;'</span> or <span style="color: #ff0000;">'\h'</span> <span style="color: #000000; font-weight: bold;">for</span> help. Type <span style="color: #ff0000;">'\c'</span> to <span style="color: #c20cb9; font-weight: bold;">clear</span> the current input statement.<br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; use <span style="color: #7a0874; font-weight: bold;">test</span>;<br />
Database changed<br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; CREATE TABLE clustered <span style="color: #7a0874; font-weight: bold;">&#40;</span>i INT<span style="color: #7a0874; font-weight: bold;">&#41;</span> <span style="color: #007800;">ENGINE</span>=NDBCLUSTER;<br />
Query OK, <span style="color: #000000;">0</span> rows affected <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">1.53</span> sec<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; INSERT INTO clustered <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #7a0874; font-weight: bold;">&#41;</span> VALUES <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">1</span><span style="color: #7a0874; font-weight: bold;">&#41;</span>;<br />
Query OK, <span style="color: #000000;">1</span> row affected <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">0.02</span> sec<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; SELECT <span style="color: #000000; font-weight: bold;">*</span> FROM clustered;<br />
<br />
+------+<br />
<span style="color: #000000; font-weight: bold;">|</span> i <span style="color: #000000; font-weight: bold;">|</span><br />
+------+<br />
<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #000000;">2</span> <span style="color: #000000; font-weight: bold;">|</span><br />
<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #000000;">1</span> <span style="color: #000000; font-weight: bold;">|</span><br />
+------+<br />
<span style="color: #000000;">2</span> rows <span style="color: #000000; font-weight: bold;">in</span> <span style="color: #000000; font-weight: bold;">set</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">0.02</span> sec<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; <span style="color: #7a0874; font-weight: bold;">exit</span><br />
Bye</div></div>
<p>Как видно, база данных не потерялась а продолжает работать и без одной ноды. Теперь проверим восстанавливаемость кластера, подключив к сети отключенную ранее ноду и сделав на ней SELECT из этой же базы:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>local<span style="color: #000000; font-weight: bold;">/</span>mysql<span style="color: #000000; font-weight: bold;">/</span>bin<span style="color: #000000; font-weight: bold;">/</span>mysql <span style="color: #660033;">-u</span> root -pпароль<br />
Welcome to the MySQL monitor. Commands end with ; or \g.<br />
Your MySQL connection <span style="color: #c20cb9; font-weight: bold;">id</span> is <span style="color: #000000;">1</span><br />
Server version: 5.0.85 MySQL Community Server <span style="color: #7a0874; font-weight: bold;">&#40;</span>GPL<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
Type <span style="color: #ff0000;">'help;'</span> or <span style="color: #ff0000;">'\h'</span> <span style="color: #000000; font-weight: bold;">for</span> help. Type <span style="color: #ff0000;">'\c'</span> to <span style="color: #c20cb9; font-weight: bold;">clear</span> the current input statement.<br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; use <span style="color: #7a0874; font-weight: bold;">test</span>;<br />
Reading table information <span style="color: #000000; font-weight: bold;">for</span> completion of table and column names<br />
You can turn off this feature to get a quicker startup with <span style="color: #660033;">-A</span><br />
Database changed<br />
<br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; SELECT <span style="color: #000000; font-weight: bold;">*</span> FROM clustered;<br />
<br />
+------+<br />
<span style="color: #000000; font-weight: bold;">|</span> i <span style="color: #000000; font-weight: bold;">|</span><br />
+------+<br />
<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #000000;">2</span> <span style="color: #000000; font-weight: bold;">|</span><br />
<span style="color: #000000; font-weight: bold;">|</span> <span style="color: #000000;">1</span> <span style="color: #000000; font-weight: bold;">|</span><br />
+------+<br />
<br />
<span style="color: #000000;">2</span> rows <span style="color: #000000; font-weight: bold;">in</span> <span style="color: #000000; font-weight: bold;">set</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #000000;">0.01</span> sec<span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
mysql<span style="color: #000000; font-weight: bold;">&amp;</span>gt; <span style="color: #7a0874; font-weight: bold;">exit</span><br />
Bye</div></div>
<p>Все работает!</p>

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]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>WP Group Access</title>
		<link>http://adminofsystem.net/2011/07/wp-group-access/</link>
		<comments>http://adminofsystem.net/2011/07/wp-group-access/#comments</comments>
		<pubDate>Wed, 20 Jul 2011 16:57:04 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[My plugins]]></category>
		<category><![CDATA[плагины]]></category>

		<guid isPermaLink="false">http://adminofsystem.net/?p=440</guid>
		<description><![CDATA[Палагин для ограничений доступа в категории по группам пользователей. Скачать можно тут]]></description>
			<content:encoded><![CDATA[<p>Палагин для ограничений доступа в категории по группам пользователей.</p>
<p>Скачать можно <a target="_blank" rel="nofollow" href="http://adminofsystem.net/goto/http://wordpress.org/extend/plugins/wp-group-access/" >тут</a></p>

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		</item>
		<item>
		<title>DMZ на CISCO ACL</title>
		<link>http://adminofsystem.net/2011/05/dmz-%d0%bd%d0%b0-cisco-acl/</link>
		<comments>http://adminofsystem.net/2011/05/dmz-%d0%bd%d0%b0-cisco-acl/#comments</comments>
		<pubDate>Sun, 08 May 2011 07:17:23 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[CISCO]]></category>
		<category><![CDATA[acl]]></category>
		<category><![CDATA[catalyst]]></category>
		<category><![CDATA[cisco]]></category>
		<category><![CDATA[dmz]]></category>

		<guid isPermaLink="false">http://adminofsystem.net/?p=427</guid>
		<description><![CDATA[ACL (англ. Access Control List — список контроля доступа, по-английски произносится «эй-си-эл») — определяет, кто или что может получать доступ к конкретному объекту, и какие именно операции разрешено или запрещено этому субъекту проводить над объектом. Все действия проводились на cisco catalyst 3560. Часть первая. Входящий трафик. В этом примере у меня есть частная сеть 192.168.32.x [...]]]></description>
			<content:encoded><![CDATA[<p>ACL (англ. Access Control List — список контроля доступа, по-английски произносится «эй-си-эл») — определяет, кто или что может получать доступ к конкретному объекту, и какие именно операции разрешено или запрещено этому субъекту проводить над объектом.</p>
<p>Все действия проводились на cisco catalyst 3560.</p>
<p>Часть первая.  Входящий трафик.</p>
<p>В этом примере у меня есть частная сеть 192.168.32.x и сеть DMZ 192.168.30.x.</p>
<p>Заблокируем весь для группы 100.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">access-list <span style="color: #000000;">100</span> deny <span style="color: #c20cb9; font-weight: bold;">ip</span> 192.168.30.0 0.0.0.255 any<br />
access-list <span style="color: #000000;">100</span> deny <span style="color: #c20cb9; font-weight: bold;">ip</span> 192.168.32.0 0.0.0.255 any<br />
access-list <span style="color: #000000;">100</span> permit <span style="color: #c20cb9; font-weight: bold;">ip</span> any any</div></div>
<p>Применим группу 100 для serial0/0.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">interface serial0<span style="color: #000000; font-weight: bold;">/</span><span style="color: #000000;">0</span><br />
<span style="color: #c20cb9; font-weight: bold;">ip</span> access-group <span style="color: #000000;">100</span> <span style="color: #000000; font-weight: bold;">in</span></div></div>
<p>Разрешим трафик с DMZ сети на DMZ интерфейс.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">access-list <span style="color: #000000;">101</span> permit <span style="color: #c20cb9; font-weight: bold;">ip</span> 192.168.30.0 0.0.0.255 any<br />
interface ethernet0<span style="color: #000000; font-weight: bold;">/</span><span style="color: #000000;">0</span><br />
<span style="color: #c20cb9; font-weight: bold;">ip</span> access-group <span style="color: #000000;">101</span> <span style="color: #000000; font-weight: bold;">in</span></div></div>
<p>Разрешим трафик с приватной сети на приватный интерфейс.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">access-list <span style="color: #000000;">102</span> permit <span style="color: #c20cb9; font-weight: bold;">ip</span> 192.168.32.0 0.0.0.255 any<br />
interface ethernet0<span style="color: #000000; font-weight: bold;">/</span><span style="color: #000000;">1</span><br />
<span style="color: #c20cb9; font-weight: bold;">ip</span> access-group <span style="color: #000000;">102</span> <span style="color: #000000; font-weight: bold;">in</span></div></div>
<p>Первая часть установки сделана. Мы разрешил трафик в нашей сети на интерфейсы cisco, но мы еще не сказали, что трафик может покидать их. Теперь нужно разрешить определнный вохдящий трафик в DMZ с приватных сетей.</p>
<p>Часть вторая. Исходящий трафик.</p>
<p>Разрешим выход в интернет из сети DMZ, например, для доступа к внешним серверам DNS.<br />
Правило для TCP-handshake:<br />
access-list 103 permit tcp any host 192.168.30.0 0.0.0.255 established</p>
<p>Правила для DNS и ICMP.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">access-list <span style="color: #000000;">103</span> permit udp host 192.168.30.3 eq domain any eq domain<br />
access-list <span style="color: #000000;">103</span> permit udp host 192.168.30.3 gt <span style="color: #000000;">1023</span> any eq domain<br />
access-list <span style="color: #000000;">103</span> permit udp host 192.168.30.3 eq domain any gt <span style="color: #000000;">1023</span><br />
access-list <span style="color: #000000;">103</span> permit tcp host 192.168.30.3 any eq domain<br />
access-list <span style="color: #000000;">103</span> permit icmp 192.168.30.0 0.0.0.255 any echo-reply<br />
access-list <span style="color: #000000;">103</span> permit tcp host 192.168.30.1 any<br />
access-list <span style="color: #000000;">103</span> permit tcp host 192.168.30.4 any eq smtp</div></div>
<p>Теперь разрешим доступ из локальной сети в DMZ.</p>
<p>Правило для TCP-handshake.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">access-list <span style="color: #000000;">104</span> permit tcp any host 192.168.30.0 0.0.0.255 established</div></div>
<p>Правила для DNS,FTP,HTTP,ICMP,TELNET,SMTP.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">access-list <span style="color: #000000;">104</span> permit udp any eq domain host 192.168.30.3 eq domain<br />
access-list <span style="color: #000000;">104</span> permit udp any eq domain host 192.168.30.3 gt <span style="color: #000000;">1023</span><br />
access-list <span style="color: #000000;">104</span> permit udp any gt <span style="color: #000000;">1023</span> host 192.168.30.3 eq domain<br />
access-list <span style="color: #000000;">104</span> permit icmp any 192.168.30.0 0.0.0.255 <span style="color: #7a0874; font-weight: bold;">echo</span><br />
access-list <span style="color: #000000;">104</span> permit tcp any host 192.168.30.2 eq www<br />
access-list <span style="color: #000000;">104</span> permit tcp 192.168.32.0 0.0.0.255 host 192.168.30.1 range ftp-data <span style="color: #c20cb9; font-weight: bold;">ftp</span><br />
access-list <span style="color: #000000;">104</span> permit tcp 192.168.32.0 0.0.0.255 host 192.168.30.1 eq telnet<br />
access-list <span style="color: #000000;">104</span> permit tcp 192.168.32.0 0.0.0.255 host 192.168.30.1 eq <span style="color: #000000;">8080</span><br />
access-list <span style="color: #000000;">104</span> permit tcp any eq ftp-data host 192.168.30.1 gt <span style="color: #000000;">1023</span><br />
access-list <span style="color: #000000;">104</span> permit tcp any host 192.168.30.4 eq smtp<br />
access-list <span style="color: #000000;">104</span> permit tcp host 172.16.1.2 host 192.168.30.3 eq domain<br />
access-list <span style="color: #000000;">104</span> permit tcp host 172.16.1.4 host 192.168.30.3 eq domain</div></div>
<p>Наконец мы разрешим трафик из DMZ сети для установки соединения (TCP-handshake,FTP-active mode,ICMP echo ответ) из LAN в DMZ.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">access-list <span style="color: #000000;">105</span> permit tcp 192.168.30.0 0.0.0.255 192.168.32.0 0.0.0.255 established<br />
access-list <span style="color: #000000;">105</span> permit icmp 192.168.30.0 0.0.0.255 192.168.32.0 0.0.0.255 echo-reply<br />
access-list <span style="color: #000000;">105</span> permit tcp host 192.168.30.1 eq ftp-data 192.168.32.0 0.0.0.255 gt <span style="color: #000000;">1023</span><br />
access-list <span style="color: #000000;">105</span> permit tcp host 192.168.30.4 192.168.32.0 0.0.0.255 eq smtp</div></div>
<p>Применим группы.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">interface serial0<span style="color: #000000; font-weight: bold;">/</span><span style="color: #000000;">0</span><br />
<span style="color: #c20cb9; font-weight: bold;">ip</span> access-group <span style="color: #000000;">100</span> <span style="color: #000000; font-weight: bold;">in</span><br />
<span style="color: #c20cb9; font-weight: bold;">ip</span> access-group <span style="color: #000000;">103</span> out<br />
<br />
interface ethernet0<span style="color: #000000; font-weight: bold;">/</span><span style="color: #000000;">0</span><br />
<span style="color: #c20cb9; font-weight: bold;">ip</span> access-group <span style="color: #000000;">101</span> <span style="color: #000000; font-weight: bold;">in</span><br />
<span style="color: #c20cb9; font-weight: bold;">ip</span> access-group <span style="color: #000000;">104</span> out<br />
<br />
interface ethernet0<span style="color: #000000; font-weight: bold;">/</span><span style="color: #000000;">1</span><br />
<span style="color: #c20cb9; font-weight: bold;">ip</span> access-group <span style="color: #000000;">102</span> <span style="color: #000000; font-weight: bold;">in</span><br />
<span style="color: #c20cb9; font-weight: bold;">ip</span> access-group <span style="color: #000000;">105</span> out</div></div>

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		<slash:comments>55</slash:comments>
		</item>
		<item>
		<title>Backup MSSQL</title>
		<link>http://adminofsystem.net/2011/04/backup-mssql/</link>
		<comments>http://adminofsystem.net/2011/04/backup-mssql/#comments</comments>
		<pubDate>Mon, 18 Apr 2011 12:34:47 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Databases]]></category>
		<category><![CDATA[databases]]></category>
		<category><![CDATA[mssql]]></category>
		<category><![CDATA[Windows]]></category>

		<guid isPermaLink="false">http://adminofsystem.net/?p=417</guid>
		<description><![CDATA[Полный бэкап раз в сутки. @echo off rem База которую бэкапим set DB=UPP rem Куда бэкапим set bkdir=C: set bkpath=%bkdir%\%date% if not exist &#34;%bkpath%&#34; mkdir &#34;%bkpath%&#34; &#34;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\SQLCMD.EXE&#34; -S .\SQLEXPRESS -q &#34;BACKUP DATABASE %DB% TO DISK='%bkpath%\backup_%DB%.bak';RESTORE VERIFYONLY FROM DISK='%bkpath%\backup_%DB%.bak'&#34; -o %bkpath%\backup_%DB%.log Разностный бэкап через каждые 4 часа @echo off rem База которую бэкапим [...]]]></description>
			<content:encoded><![CDATA[<p>Полный бэкап раз в сутки.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #000000; font-weight: bold;">@</span><span style="color: #7a0874; font-weight: bold;">echo</span> off<br />
rem База которую бэкапим<br />
<span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">DB</span>=UPP<br />
rem Куда бэкапим<br />
<span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">bkdir</span>=C:<br />
<br />
<span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">bkpath</span>=<span style="color: #000000; font-weight: bold;">%</span>bkdir<span style="color: #000000; font-weight: bold;">%</span>\<span style="color: #000000; font-weight: bold;">%</span>date<span style="color: #000000; font-weight: bold;">%</span><br />
<br />
<span style="color: #000000; font-weight: bold;">if</span> not exist <span style="color: #ff0000;">&quot;%bkpath%&quot;</span> <span style="color: #c20cb9; font-weight: bold;">mkdir</span> <span style="color: #ff0000;">&quot;%bkpath%&quot;</span><br />
<br />
<span style="color: #ff0000;">&quot;C:\Program Files\Microsoft SQL Server\100<span style="color: #000099; font-weight: bold;">\T</span>ools\Binn\SQLCMD.EXE&quot;</span> <span style="color: #660033;">-S</span> .\SQLEXPRESS <span style="color: #660033;">-q</span> <span style="color: #ff0000;">&quot;BACKUP DATABASE %DB% TO DISK='%bkpath%\backup_%DB%.bak';RESTORE VERIFYONLY FROM DISK='%bkpath%\backup_%DB%.bak'&quot;</span> <span style="color: #660033;">-o</span> <span style="color: #000000; font-weight: bold;">%</span>bkpath<span style="color: #000000; font-weight: bold;">%</span>\backup_<span style="color: #000000; font-weight: bold;">%</span>DB<span style="color: #000000; font-weight: bold;">%</span>.log</div></div>
<p>Разностный бэкап через каждые 4 часа</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #000000; font-weight: bold;">@</span><span style="color: #7a0874; font-weight: bold;">echo</span> off<br />
rem База которую бэкапим<br />
<span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">DB</span>=UPP<br />
rem Куда бэкапим<br />
<span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">bkdir</span>=C:<br />
<span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">bkpath</span>=<span style="color: #000000; font-weight: bold;">%</span>bkdir<span style="color: #000000; font-weight: bold;">%</span>\<span style="color: #000000; font-weight: bold;">%</span>date<span style="color: #000000; font-weight: bold;">%</span><br />
<br />
<span style="color: #000000; font-weight: bold;">if</span> not exist <span style="color: #ff0000;">&quot;%bkpath%&quot;</span> <span style="color: #c20cb9; font-weight: bold;">mkdir</span> <span style="color: #ff0000;">&quot;%bkpath%&quot;</span><br />
<br />
<span style="color: #ff0000;">&quot;C:\Program Files\Microsoft SQL Server\100<span style="color: #000099; font-weight: bold;">\T</span>ools\Binn\SQLCMD.EXE&quot;</span> <span style="color: #660033;">-S</span> .\SQLEXPRESS <span style="color: #660033;">-q</span> <span style="color: #ff0000;">&quot;BACKUP DATABASE %DB% TO DISK='%bkpath%\backup_%DB%.bak' WITH DIFFERENTIAL;RESTORE VERIFYONLY FROM DISK='%bkpath%\backup_%DB%.bak'&quot;</span> <span style="color: #660033;">-o</span> <span style="color: #000000; font-weight: bold;">%</span>bkpath<span style="color: #000000; font-weight: bold;">%</span>\backup_<span style="color: #000000; font-weight: bold;">%</span>DB<span style="color: #000000; font-weight: bold;">%</span>.log</div></div>
<p>Одним скриптом</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #000000; font-weight: bold;">@</span><span style="color: #7a0874; font-weight: bold;">echo</span> off<br />
<br />
<span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">db</span>=<span style="color: #000000; font-weight: bold;">%</span>1<br />
<span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">bkdir</span>=<span style="color: #000000; font-weight: bold;">%</span>2<br />
<span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">type</span>=<span style="color: #000000; font-weight: bold;">%</span>3<br />
<br />
<span style="color: #000000; font-weight: bold;">if</span> <span style="color: #ff0000;">&quot;%db%&quot;</span> == <span style="color: #ff0000;">&quot;&quot;</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><br />
<br />
&nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">echo</span> <span style="color: #ff0000;">&quot;usage: %0 &lt;dbname&gt; &lt;path&gt; &lt;diff|full&gt;&quot;</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">exit</span> <span style="color: #000000; font-weight: bold;">/</span>b <span style="color: #000000;">1</span><br />
<br />
<span style="color: #7a0874; font-weight: bold;">&#41;</span> <span style="color: #000000; font-weight: bold;">else</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><br />
&nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">if</span> <span style="color: #ff0000;">&quot;%bkdir%&quot;</span> == <span style="color: #ff0000;">&quot;&quot;</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">echo</span> <span style="color: #ff0000;">&quot;usage: %0 %db% &lt;path&gt; &lt;diff|full&gt;&quot;</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">exit</span> <span style="color: #000000; font-weight: bold;">/</span>b <span style="color: #000000;">1</span><br />
<br />
&nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#41;</span> <span style="color: #000000; font-weight: bold;">else</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">if</span> <span style="color: #ff0000;">&quot;%type%&quot;</span> == <span style="color: #ff0000;">&quot;full&quot;</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">bkpath</span>=<span style="color: #000000; font-weight: bold;">%</span>bkdir<span style="color: #000000; font-weight: bold;">%</span>\<span style="color: #000000; font-weight: bold;">%</span>date<span style="color: #000000; font-weight: bold;">%</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">if</span> not exist <span style="color: #ff0000;">&quot;%bkpath%&quot;</span> <span style="color: #c20cb9; font-weight: bold;">mkdir</span> <span style="color: #ff0000;">&quot;%bkpath%&quot;</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #ff0000;">&quot;C:\Program Files\Microsoft SQL Server\100<span style="color: #000099; font-weight: bold;">\T</span>ools\Binn\SQLCMD.EXE&quot;</span> <span style="color: #660033;">-S</span> .\SQLEXPRESS <span style="color: #660033;">-q</span> <span style="color: #ff0000;">&quot;BACKUP DATABASE %db% TO DISK='%bkpath%\backup_%db%.bak';RESTORE VERIFYONLY FROM DISK='%bkpath%\backup_%db%.bak'&quot;</span> <span style="color: #660033;">-o</span> <span style="color: #000000; font-weight: bold;">%</span>bkpath<span style="color: #000000; font-weight: bold;">%</span>\backup_<span style="color: #000000; font-weight: bold;">%</span>db<span style="color: #000000; font-weight: bold;">%</span>.log<br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#41;</span> <span style="color: #000000; font-weight: bold;">else</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">if</span> <span style="color: #ff0000;">&quot;%type%&quot;</span> == <span style="color: #ff0000;">&quot;diff&quot;</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">if</span> not exist <span style="color: #ff0000;">&quot;%bkdir%&quot;</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">echo</span> First run full backup.<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">exit</span> <span style="color: #000000; font-weight: bold;">/</span>b <span style="color: #000000;">1</span><br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#41;</span> <span style="color: #000000; font-weight: bold;">else</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">set</span> <span style="color: #007800;">bkpath</span>=<span style="color: #000000; font-weight: bold;">%</span>bkdir<span style="color: #000000; font-weight: bold;">%</span>\<span style="color: #000000; font-weight: bold;">%</span>date<span style="color: #000000; font-weight: bold;">%</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #ff0000;">&quot;C:\Program Files\Microsoft SQL Server\100<span style="color: #000099; font-weight: bold;">\T</span>ools\Binn\SQLCMD.EXE&quot;</span> <span style="color: #660033;">-S</span> .\SQLEXPRESS <span style="color: #660033;">-q</span> <span style="color: #ff0000;">&quot;BACKUP DATABASE %db% TO DISK='%bkpath%\backup_%db%.bak' WITH DIFFERENTIAL;RESTORE VERIFYONLY FROM DISK='%bkpath%\backup_%db%.bak'&quot;</span> <span style="color: #660033;">-o</span> <span style="color: #000000; font-weight: bold;">%</span>bkpath<span style="color: #000000; font-weight: bold;">%</span>\backup_<span style="color: #000000; font-weight: bold;">%</span>db<span style="color: #000000; font-weight: bold;">%</span>.log<br />
&nbsp; &nbsp; <br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#41;</span> <span style="color: #000000; font-weight: bold;">else</span> <span style="color: #7a0874; font-weight: bold;">&#40;</span><br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">echo</span> <span style="color: #ff0000;">&quot;usage: %0 %db% %bkpath% &lt;diff|full&gt;&quot;</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">exit</span> <span style="color: #000000; font-weight: bold;">/</span>b <span style="color: #000000;">1</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#41;</span> &nbsp; <br />
&nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#41;</span><br />
<span style="color: #7a0874; font-weight: bold;">&#41;</span></div></div>

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		<slash:comments>44</slash:comments>
		</item>
		<item>
		<title>Утилиты мониторинга в OS FreeBSD</title>
		<link>http://adminofsystem.net/2011/04/%d1%83%d1%82%d0%b8%d0%bb%d0%b8%d1%82%d1%8b-%d0%bc%d0%be%d0%bd%d0%b8%d1%82%d0%be%d1%80%d0%b8%d0%bd%d0%b3%d0%b0-%d0%b2-os-freebsd/</link>
		<comments>http://adminofsystem.net/2011/04/%d1%83%d1%82%d0%b8%d0%bb%d0%b8%d1%82%d1%8b-%d0%bc%d0%be%d0%bd%d0%b8%d1%82%d0%be%d1%80%d0%b8%d0%bd%d0%b3%d0%b0-%d0%b2-os-freebsd/#comments</comments>
		<pubDate>Sun, 03 Apr 2011 19:34:11 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[FreeBSD]]></category>
		<category><![CDATA[unix]]></category>
		<category><![CDATA[мониторинг]]></category>

		<guid isPermaLink="false">http://adminofsystem.net/?p=414</guid>
		<description><![CDATA[Есть большое количество ПО для мониторинга типа monit, zabbix, cacti. Они собирают статистику и строят графики. Но дело в том, что не всегда есть возможность открыть браузер и посмотреть те самые графики. Для таких случаев есть консоль. Вот не большой список команд для мониторинга FreeBSD: mount – показывает смонтированные подразделы и флаги из монтирования df [...]]]></description>
			<content:encoded><![CDATA[<p>Есть большое количество ПО для мониторинга типа monit, zabbix, cacti. Они собирают статистику и строят графики. Но дело в том, что не всегда есть возможность открыть браузер и посмотреть те самые графики. Для таких случаев есть консоль. Вот не большой список команд для мониторинга FreeBSD:</p>
<p>mount – показывает смонтированные подразделы и флаги из монтирования</p>
<p>df – показывает смонтированные подразделы, их размер и свободное место на нихfdisk /dev/ad0 – показывает информацию о диске ad0 и разделах на нем</p>
<p>disklabel /dev/ad0s1 – показывает список подразделов в первом разделе диска ad0</p>
<p>swapinfo – показывает список подразделов свопинга на дисках и их использование</p>
<p>fstat – показывает список открытых файлов (имена файлов не выводятся)</p>
<p>pstat -f – выводит список открытых файлов (имена файлов не выводятся)</p>
<p>systat -vmstat n – каждые n секунд выводит количество транзакций с диском в секунду, объем записанных/считанных данных на диск в секунду, средний размер транзакции и процент времени в течение которого диск был занят работой)</p>
<p>iostat – выводит информацию, аналогичную systat -vmstat, но не выводит занятости диска по времени и может выводить среднюю статистику с момента загрузки.</p>
<p>vmstat – выводит количество операций на диске в секунду</p>
<p>/stand/sysinstall – можно посмотреть и изменить разметку диска и монтирование</p>
<p>less /etc/fstab – таблица монтирования при загрузке</p>
<p>systat -vmstat n – вывод показателей загрузки (number of jobs in the run queue averaged over 1, 5 and 15 min), состояния памяти (в страницах), количества процессов в группах, количество вызовов специальных функций ядра (traps, interrupts, system calls, network software interrupts), использование процессора, трансляции имен, активность свопа, прерывания, а также информацию по использованию диска (см)</p>
<p>top – аналогичная информация в сокращенном виде + использование памяти и свопа в мегабайтах, список процессов, отсортированных по использованию процессора.</p>
<p>ps afx – список запущенных процессов и время процессора на каждый</p>
<p>ifconfig – список сетевых интерфейсов с ip-адресами, масками, mac-адресами, типами карт и их статусами (названия карточек можно посмотреть в файле конфигурации ядра)</p>
<p>systat -ifstat n – объем трафика за n секунд на всех сетевых интерфейсах</p>
<p>netstat – вывод активных сетевых соединений (сокетов)</p>
<p>systat -netstat n – аналог netstat в реальном времени</p>
<p>systat -ip n – таблица IP-пакетов и ошибок по типам за n секунд</p>
<p>systat -tcp n – таблица TCP-пакетов и ошибок по типам за n секунд</p>
<p>systat -icmp n – таблица ICMP-пакетов и ошибок по типам за n секунд</p>
<p>netstat -ibt – список интерфейсов, разбитых по ip-адресам (!) с объемом трафика на каждом, количеством ошибок, коллизий, значением watchdog-таймера</p>
<p>netstat -r – таблица маршрутизации</p>
<p>arp -a – таблица ARP</p>
<p>tcpdump -i rl0 host 192.168.1.2 and port 21 – сниффер пакетов на интерфейсе rl0, фильтрующий пакеты, содержащие адрес 192.168.1.2 и порт 21</p>
<p>trafshow -i rl0 – программа для сортировки и вывода сетевых потоков (устанавливается дополнительно пакетом или из портов)</p>
<p>date – текущее время и дата</p>
<p>w – выводит, сколько времени назад система загрузилась и залогиненных пользователей</p>
<p>last – выводит историю перезагрузок и входов пользователей</p>

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		<slash:comments>27</slash:comments>
		</item>
		<item>
		<title>Репликация дисков между двумя серверами на FreeBSD+HASTD</title>
		<link>http://adminofsystem.net/2011/03/%d1%80%d0%b5%d0%bf%d0%bb%d0%b8%d0%ba%d0%b0%d1%86%d0%b8%d1%8f-%d0%b4%d0%b8%d1%81%d0%ba%d0%be%d0%b2-%d0%bc%d0%b5%d0%b6%d0%b4%d1%83-%d0%b4%d0%b2%d1%83%d0%bc%d1%8f-%d1%81%d0%b5%d1%80%d0%b2%d0%b5%d1%80/</link>
		<comments>http://adminofsystem.net/2011/03/%d1%80%d0%b5%d0%bf%d0%bb%d0%b8%d0%ba%d0%b0%d1%86%d0%b8%d1%8f-%d0%b4%d0%b8%d1%81%d0%ba%d0%be%d0%b2-%d0%bc%d0%b5%d0%b6%d0%b4%d1%83-%d0%b4%d0%b2%d1%83%d0%bc%d1%8f-%d1%81%d0%b5%d1%80%d0%b2%d0%b5%d1%80/#comments</comments>
		<pubDate>Fri, 18 Mar 2011 21:18:44 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[FreeBSD]]></category>
		<category><![CDATA[Администрирование]]></category>

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		<description><![CDATA[2 сервера под управлением FreeBSD 8.1-RELEASE: host1 (192.168.1.2) и host2 (192.168.1.1) На каждом сервере диски: ad0 с системой, ad1 &#8212; неразмеченный. ad1 будет под контролем HASTd и ZFS, на которой будет работать JAIL. Сервера скоммутированы на свиче в одну подсеть (мой случай &#8212; 192.168.1.0/24), 1 Gbit/s интерфейс. Между серверами будет поднят виртуальный (carp) IP 192.168.1.5, [...]]]></description>
			<content:encoded><![CDATA[<p>2 сервера под управлением FreeBSD 8.1-RELEASE: </p>
<p>host1 (192.168.1.2) и host2 (192.168.1.1)<br />
На каждом сервере диски: ad0 с системой, ad1 &#8212; неразмеченный. </p>
<p>ad1 будет под контролем HASTd и ZFS, на которой будет работать JAIL.<br />
Сервера скоммутированы на свиче в одну подсеть (мой случай &#8212; 192.168.1.0/24), 1 Gbit/s интерфейс.<br />
Между серверами будет поднят виртуальный (carp) IP 192.168.1.5, принадлежащий jail-у. </p>
<p>Пишем /etc/rc.conf. </p>
<p>На host1:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #007800;">zfs_enable</span>=<span style="color: #ff0000;">&quot;YES&quot;</span> <br />
<span style="color: #007800;">hostname</span>=<span style="color: #ff0000;">&quot;host1&quot;</span> <br />
<span style="color: #007800;">ifconfig_em0</span>=<span style="color: #ff0000;">&quot;192.168.1.2/24&quot;</span> <br />
<span style="color: #007800;">defaultrouter</span>=<span style="color: #ff0000;">&quot;192.168.1.1&quot;</span> <br />
<span style="color: #007800;">hastd_enable</span>=<span style="color: #ff0000;">&quot;YES&quot;</span> <br />
<span style="color: #007800;">cloned_interfaces</span>=<span style="color: #ff0000;">&quot;carp0&quot;</span> <br />
<span style="color: #007800;">ifconfig_carp0</span>=<span style="color: #ff0000;">&quot;vhid 1 advskew 100 pass password 192.168.1.5/24&quot;</span> <br />
<span style="color: #007800;">ezjail_enable</span>=<span style="color: #ff0000;">&quot;YES&quot;</span></div></div>
<p>На host2:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #007800;">zfs_enable</span>=<span style="color: #ff0000;">&quot;YES&quot;</span> <br />
<span style="color: #007800;">ifconfig_em0</span>=<span style="color: #ff0000;">&quot;192.168.1.1/24&quot;</span> <br />
<span style="color: #007800;">defaultrouter</span>=<span style="color: #ff0000;">&quot;192.168.1.1&quot;</span> <br />
<span style="color: #007800;">hastd_enable</span>=<span style="color: #ff0000;">&quot;YES&quot;</span> <br />
<span style="color: #007800;">cloned_interfaces</span>=<span style="color: #ff0000;">&quot;carp0&quot;</span> <br />
<span style="color: #007800;">ifconfig_carp0</span>=<span style="color: #ff0000;">&quot;vhid 1 advskew 100 pass password 192.168.1.5/24&quot;</span> <br />
<span style="color: #007800;">ezjail_enable</span>=<span style="color: #ff0000;">&quot;YES&quot;</span></div></div>
<p>Пишем конфиг ядра GENERIC-CARP для поддержки carp(4) ( есть впрочем вариант userland-ового net/ucarp ). </p>
<p>На обеих нодах:<br />
Архитектура i386, соотв. /sys/i386/conf/GENERIC-CARP: </p>
<p>device carp </p>
<p>Компилируем и перезагружаемся, на обеих машинах.</p>
<p>make buildkernel KERNCONF=GENERIC-CARP;make installkernel KERNCONF=GENERIC-CARP;reboot</p>
<p>Пишем на обеих машинах одинаковый /etc/hast.conf:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">on host1 <br />
<span style="color: #7a0874; font-weight: bold;">&#123;</span> <br />
&nbsp; &nbsp; &nbsp; listen 192.168.1.2<br />
<span style="color: #7a0874; font-weight: bold;">&#125;</span> <br />
<br />
on host2<br />
<span style="color: #7a0874; font-weight: bold;">&#123;</span> <br />
&nbsp; &nbsp; &nbsp; listen 192.168.1.1<br />
<span style="color: #7a0874; font-weight: bold;">&#125;</span> <br />
resource shared <br />
<span style="color: #7a0874; font-weight: bold;">&#123;</span> <br />
&nbsp; &nbsp; &nbsp; on host1 <br />
&nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#123;</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">local</span> <span style="color: #000000; font-weight: bold;">/</span>dev<span style="color: #000000; font-weight: bold;">/</span>ad1<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; remote 192.168.1.1 <br />
&nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#125;</span> <br />
&nbsp; &nbsp; &nbsp; on host2 <br />
&nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#123;</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">local</span> <span style="color: #000000; font-weight: bold;">/</span>dev<span style="color: #000000; font-weight: bold;">/</span>ad1 <br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; remote 192.168.1.2 &nbsp; <br />
&nbsp; &nbsp; &nbsp; <span style="color: #7a0874; font-weight: bold;">&#125;</span> <br />
<span style="color: #7a0874; font-weight: bold;">&#125;</span></div></div>
<p>Запускаем hastd (на обеих машинах): </p>
<p>/etc/rc.d/hastd restart </p>
<p>Создаем файловую систему для Jail/HASTd (делается только на одной машине, вторая получит все это добро через реплику) и сообщаем HAST-у, что он у нас будет мастером.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">gpart create <span style="color: #660033;">-s</span> GPT ad1<br />
gpart add <span style="color: #660033;">-b</span> <span style="color: #000000;">34</span> <span style="color: #660033;">-s</span> <span style="color: #000000;">4194230</span> <span style="color: #660033;">-t</span> freebsd-zfs ad1<br />
hastctl create shared <br />
hastctl role primary shared <br />
zpool create jails hast<span style="color: #000000; font-weight: bold;">/</span>shared</div></div>
<p>Настроил ezjail на обеих машинах:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #c20cb9; font-weight: bold;">cat</span> <span style="color: #000000; font-weight: bold;">&gt;</span> <span style="color: #ff0000;">&quot;/usr/local/etc/ezjail.conf&quot;</span><br />
<span style="color: #007800;">ezjail_jaildir</span>=<span style="color: #000000; font-weight: bold;">/</span>jails<br />
<span style="color: #007800;">ezjail_jailtemplate</span>=<span style="color: #800000;">${ezjail_jaildir}</span><span style="color: #000000; font-weight: bold;">/</span>newjail<br />
<span style="color: #666666; font-style: italic;">#ezjail_jailbase=${ezjail_jaildir}/basejail</span><br />
<span style="color: #007800;">ezjail_sourcetree</span>=<span style="color: #000000; font-weight: bold;">/</span>usr<span style="color: #000000; font-weight: bold;">/</span>src<br />
<span style="color: #007800;">ezjail_ftphost</span>=ftp.freebsd.org<br />
<span style="color: #007800;">ezjail_default_execute</span>=<span style="color: #ff0000;">&quot;/usr/bin/login -f root&quot;</span><br />
<span style="color: #007800;">ezjail_default_flavour</span>=<span style="color: #ff0000;">&quot;&quot;</span><br />
<span style="color: #007800;">ezjail_archivedir</span>=<span style="color: #000000; font-weight: bold;">`</span><span style="color: #7a0874; font-weight: bold;">pwd</span> -P<span style="color: #000000; font-weight: bold;">`</span><br />
<span style="color: #007800;">ezjail_uglyperlhack</span>=<span style="color: #ff0000;">&quot;YES&quot;</span><br />
<span style="color: #007800;">ezjail_devfs_enable</span>=<span style="color: #ff0000;">&quot;YES&quot;</span><br />
<span style="color: #007800;">ezjail_procfs_enable</span>=<span style="color: #ff0000;">&quot;YES&quot;</span><br />
<span style="color: #007800;">ezjail_mount_enable</span>=<span style="color: #ff0000;">&quot;YES&quot;</span><br />
<span style="color: #007800;">ezjail_use_zfs</span>=<span style="color: #ff0000;">&quot;YES&quot;</span><br />
<span style="color: #007800;">ezjail_jailzfs</span>=<span style="color: #ff0000;">&quot;jails&quot;</span></div></div>
<p>Добавим новый джэйл на host1:</p>
<p>ezjail-admin create -s 10G -c zfs vm1 192.168.1.5<br />
скопируем конфиг /usr/local/etc/ezjail/vm1 на host2.</p>
<p>Содержимое /root/carp_sw скрипта, ответственный за переключение (не забыть chmod +x /root/carp_sw):</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #666666; font-style: italic;">#!/bin/sh </span><br />
<span style="color: #007800;">pool</span>=<span style="color: #ff0000;">&quot;shared&quot;</span> <br />
<span style="color: #000000; font-weight: bold;">case</span> <span style="color: #ff0000;">&quot;$1&quot;</span> <span style="color: #000000; font-weight: bold;">in</span> <br />
master<span style="color: #7a0874; font-weight: bold;">&#41;</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; logger <span style="color: #ff0000;">&quot;carp_sw.sh: Switching to primary provider <span style="color: #007800;">${pool}</span>.&quot;</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; hastctl create <span style="color: #800000;">${pool}</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; hastctl role primary <span style="color: #800000;">${pool}</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; logger <span style="color: #ff0000;">&quot;zpool import: &quot;</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #c20cb9; font-weight: bold;">sleep</span> <span style="color: #000000;">10</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; zpool import <span style="color: #660033;">-f</span> <span style="color: #660033;">-d</span> <span style="color: #000000; font-weight: bold;">/</span>dev<span style="color: #000000; font-weight: bold;">/</span>hast jails <br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">/</span>etc<span style="color: #000000; font-weight: bold;">/</span>rc.d<span style="color: #000000; font-weight: bold;">/</span>jail onestart <br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">;;</span> <br />
slave<span style="color: #7a0874; font-weight: bold;">&#41;</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; logger <span style="color: #ff0000;">&quot;carp_sw.sh: Switching to slave profider for <span style="color: #007800;">${pool}</span>.&quot;</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; hastctl create <span style="color: #800000;">${pool}</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; hastctl role secondary <span style="color: #800000;">${pool}</span> <br />
&nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000; font-weight: bold;">;;</span> <br />
<span style="color: #000000; font-weight: bold;">esac</span></div></div>
<p>Также, чтобы упавшая и поднявшаяся машина не пыталась запускать jail, скажем ей что она теперь Slave. Содержимое /etc/rc.local на обеих машинах:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #666666; font-style: italic;">#!/bin/sh </span><br />
<span style="color: #c20cb9; font-weight: bold;">sh</span> <span style="color: #000000; font-weight: bold;">/</span>root<span style="color: #000000; font-weight: bold;">/</span>carp_sw slave</div></div>
<p>Остается все это позапускать (на обеих нодах):</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #000000; font-weight: bold;">/</span>etc<span style="color: #000000; font-weight: bold;">/</span>rc.d<span style="color: #000000; font-weight: bold;">/</span>routing restart <br />
<span style="color: #000000; font-weight: bold;">/</span>etc<span style="color: #000000; font-weight: bold;">/</span>rc.d<span style="color: #000000; font-weight: bold;">/</span>hastd restart</div></div>
<p>На host1:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #c20cb9; font-weight: bold;">sh</span> <span style="color: #000000; font-weight: bold;">/</span>root<span style="color: #000000; font-weight: bold;">/</span>carp_sw master</div></div>
<p>На host2:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap"><span style="color: #c20cb9; font-weight: bold;">sh</span> <span style="color: #000000; font-weight: bold;">/</span>root<span style="color: #000000; font-weight: bold;">/</span>carp_sw slave</div></div>
<p>Что получили в результате этой работы: </p>
<p>На carp-овом IP работает JAIL, который может содержать все что душе угодно &#8212; почтовый сервис, WEB приложение и пр. Как только обслуживающая этот jail физическая машина падает, работу на себя автоматически подхватывает второй сервер, который запускает JAIL на состояние максимально близкое к времени падени ноды. При этом HAST конфигурируется как MASTER. Когда-нибудь возвратившаяся упавшая машина становится SLAVE-ом, подхватывает реплику и готовится подстраховать MASTER-а</p>

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		<title>RAID1 под FreeBSD на живой системе с помощью atacontrol</title>
		<link>http://adminofsystem.net/2011/03/raid1-%d0%bf%d0%be%d0%b4-freebsd-%d0%bd%d0%b0-%d0%b6%d0%b8%d0%b2%d0%be%d0%b9-%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d0%b5-%d1%81-%d0%bf%d0%be%d0%bc%d0%be%d1%89%d1%8c%d1%8e-atacontrol/</link>
		<comments>http://adminofsystem.net/2011/03/raid1-%d0%bf%d0%be%d0%b4-freebsd-%d0%bd%d0%b0-%d0%b6%d0%b8%d0%b2%d0%be%d0%b9-%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d0%b5-%d1%81-%d0%bf%d0%be%d0%bc%d0%be%d1%89%d1%8c%d1%8e-atacontrol/#comments</comments>
		<pubDate>Tue, 15 Mar 2011 06:12:04 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[FreeBSD]]></category>
		<category><![CDATA[Администрирование]]></category>
		<category><![CDATA[atacontrol]]></category>
		<category><![CDATA[raid]]></category>

		<guid isPermaLink="false">http://adminofsystem.net/?p=405</guid>
		<description><![CDATA[Сначала создаем зеркальный массив RAID1: &#160;# atacontrol create RAID1 ad0 ad1 система создаcт raid1 массив но на него пока ничего не бдует писаться. Но статус у него READY: &#160; &#160; # atacontrol status ar0 &#160; &#160; &#160;ar0: ATA RAID1 subdisks: ad4 ad6 status: READY Система считает что после создания raid, на нем будут созданы слайсы, [...]]]></description>
			<content:encoded><![CDATA[<p>Сначала создаем зеркальный массив RAID1:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">&nbsp;<span style="color: #666666; font-style: italic;"># atacontrol create RAID1 ad0 ad1</span></div></div>
<p>система создаcт raid1 массив но на него пока ничего не бдует писаться. </p>
<p>Но статус у него READY:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">&nbsp; &nbsp; <span style="color: #666666; font-style: italic;"># atacontrol status ar0</span><br />
&nbsp; &nbsp; &nbsp;ar0: ATA RAID1 subdisks: ad4 ad6 status: READY</div></div>
<p>Система считает что после создания raid, на нем будут созданы слайсы,<br />
и разделы, после чего на них будут записаны данные.(что и происходит когда мы ставим систему на ar0),при этом данные не будут нарушать целостность рэйд.</p>
<p>Попробуем обмануть систему.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">&nbsp; &nbsp;<span style="color: #666666; font-style: italic;"># atacontrol list</span><br />
&nbsp; &nbsp;ATA channel <span style="color: #000000;">0</span>:<br />
&nbsp; &nbsp; &nbsp; &nbsp;Master: &nbsp;ad0 <span style="color: #000000; font-weight: bold;">&lt;</span>ST380011A<span style="color: #000000; font-weight: bold;">/</span><span style="color: #000000;">3.06</span><span style="color: #000000; font-weight: bold;">&gt;</span> ATA<span style="color: #000000; font-weight: bold;">/</span>ATAPI revision <span style="color: #000000;">6</span> <span style="color: #000000; font-weight: bold;">//</span>живая система<br />
&nbsp; &nbsp; &nbsp; &nbsp;Slave: &nbsp; &nbsp; &nbsp; no device present<br />
&nbsp; &nbsp;ATA channel <span style="color: #000000;">1</span>:<br />
&nbsp; &nbsp; &nbsp; &nbsp;Master: &nbsp;ad1 <span style="color: #000000; font-weight: bold;">&lt;</span>ST380011A<span style="color: #000000; font-weight: bold;">/</span><span style="color: #000000;">3.06</span><span style="color: #000000; font-weight: bold;">&gt;</span> ATA<span style="color: #000000; font-weight: bold;">/</span>ATAPI revision <span style="color: #000000;">6</span> <span style="color: #000000; font-weight: bold;">//</span>новый диск<br />
&nbsp; &nbsp; &nbsp; &nbsp;Slave: &nbsp; &nbsp; &nbsp; no device present<br />
&nbsp; &nbsp;<span style="color: #666666; font-style: italic;"># atacontrol detach 1</span></div></div>
<p>Теперь у нас есть целостный RAID1 который состоит из одного диска с системой.</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">&nbsp; &nbsp;<span style="color: #666666; font-style: italic;"># atacontrol status ar0</span><br />
&nbsp; &nbsp; &nbsp; ar0: ATA RAID1 subdisks: ad0 DOWN status: DEGRADED</div></div>
<p>Теперь нужно прописать ar0 в fstab</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">&nbsp; &nbsp;<span style="color: #666666; font-style: italic;"># Device &nbsp; &nbsp; &nbsp; &nbsp; Mountpoint FStype Options Dump Pass#</span><br />
&nbsp; &nbsp;<span style="color: #000000; font-weight: bold;">/</span>dev<span style="color: #000000; font-weight: bold;">/</span>ar0s1b none swap &nbsp; &nbsp; &nbsp; sw &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span style="color: #000000;">0</span> &nbsp; &nbsp; &nbsp; <span style="color: #000000;">0</span><br />
&nbsp; &nbsp;<span style="color: #000000; font-weight: bold;">/</span>dev<span style="color: #000000; font-weight: bold;">/</span>ar0s1a &nbsp; &nbsp; &nbsp;<span style="color: #000000; font-weight: bold;">/</span> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;ufs &nbsp; &nbsp; rw &nbsp; &nbsp; <span style="color: #000000;">1</span> &nbsp; &nbsp; &nbsp; <span style="color: #000000;">1</span><br />
&nbsp; &nbsp;<span style="color: #000000; font-weight: bold;">/</span>dev<span style="color: #000000; font-weight: bold;">/</span>ar0s1e &nbsp; &nbsp; &nbsp;<span style="color: #000000; font-weight: bold;">/</span>tmp &nbsp; &nbsp; &nbsp; ufs &nbsp; &nbsp; rw &nbsp; &nbsp; <span style="color: #000000;">2</span> &nbsp; &nbsp; &nbsp; <span style="color: #000000;">2</span><br />
&nbsp; &nbsp;<span style="color: #000000; font-weight: bold;">/</span>dev<span style="color: #000000; font-weight: bold;">/</span>ar0s1f &nbsp; &nbsp; &nbsp;<span style="color: #000000; font-weight: bold;">/</span>usr &nbsp; &nbsp; &nbsp; ufs &nbsp; &nbsp; rw &nbsp; &nbsp; <span style="color: #000000;">2</span> &nbsp; &nbsp; &nbsp; <span style="color: #000000;">2</span><br />
&nbsp; &nbsp;<span style="color: #000000; font-weight: bold;">/</span>dev<span style="color: #000000; font-weight: bold;">/</span>ar0s1d &nbsp; &nbsp; &nbsp;<span style="color: #000000; font-weight: bold;">/</span>var &nbsp; &nbsp; &nbsp; ufs &nbsp; &nbsp; rw &nbsp; &nbsp; <span style="color: #000000;">2</span> &nbsp; &nbsp; &nbsp; <span style="color: #000000;">2</span></div></div>
<p>перезагружаемся, должны смонтироваться все файловые системы,смотрите логи загрузки системы.<br />
после перезагрузки:</p>
<div class="codecolorer-container bash default" style="overflow:auto;white-space:nowrap;border:1px solid #9F9F9F;width:435px;"><div class="bash codecolorer" style="padding:5px;font:normal 12px/1.4em Monaco, Lucida Console, monospace;white-space:nowrap">&nbsp; &nbsp;<span style="color: #666666; font-style: italic;"># atacontrol status ar0</span><br />
&nbsp; &nbsp; &nbsp; ar0: ATA RAID1 subdisks: ad0 DOWN status: DEGRADED<br />
&nbsp; &nbsp;<span style="color: #666666; font-style: italic;"># atacontrol addspare ar0 ad1</span><br />
&nbsp; &nbsp;<span style="color: #666666; font-style: italic;"># atacontrol rebuild ar0</span><br />
&nbsp; &nbsp;<span style="color: #666666; font-style: italic;"># atacontrol status ar0</span><br />
&nbsp; &nbsp; &nbsp; ar0: ATA RAID1 subdisks: ad0 ad1 status: REBUILDING <span style="color: #000000;">1</span><span style="color: #000000; font-weight: bold;">%</span> completed</div></div>
<p>После окончания пересборки(rebuild) система готова к использованию.</p>

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