79 lines
4.8 KiB
HTML
79 lines
4.8 KiB
HTML
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Title" content="Backup considerations with logical partitions" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Backup considerations with logical partitions</title>
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</head>
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<body id="backupconsid"><a name="backupconsid"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Backup considerations with logical partitions</h1>
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<div><p>The process of backing up a logical partition is fundamentally the same
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as backing up a server without logical partitions. Each logical partition
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requires its own save strategy.</p>
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<p>Here are a few items that should affect how you plan your backup strategy:</p>
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<ul><li>It is important to remember that each logical partition functions
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independently of any others. Therefore you cannot perform a single, entire
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server backup. Instead, you need to back up each logical partition separately.</li>
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<li>As part of your backup strategy, remember that a processor failure, main
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storage failure, failure in the primary partition, or disaster shuts down
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the entire server. This may require you to recover all or some of your logical
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partitions. Therefore, plan carefully how you use your logical partitions
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and how often you need to perform a backup of each logical partition.</li>
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<li>You can generally perform these backups at the same time since each logical
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partition functions like an independent server. This can reduce the time that
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is required for performing backups.</li>
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<li>If any secondary partitions switch a removable media device between themselves,
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you must back up each of these logical partitions sequentially. You must manually
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remove and add the removable media device between the logical partitions after
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each save. Use <a href="../dbp/rbafoopnav.htm">iSeries™ Navigator</a> to
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change resources for logical partitions.</li>
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<li>The server automatically maintains the <a href="rzaiubackuppartdata.htm">configuration
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data</a> for your logical partitions. This data is not saved to or restored
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from removable media.</li>
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<li>You should <a href="../rzait/rzaitprintconfig.htm">print
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your system configuration</a> when you make changes to your logical partition
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configuration.</li>
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<li>Any function that requires you to power off or restart the server (like
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applying program temporary fixes [PTFs]) requires special care. If you need
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to power off or restart only a secondary partition, then you may safely do
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it. However, if you need to power off or restart the primary partition, then
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you need to power off all the secondary partitions <span class="uicontrol">before</span> you
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perform that function.</li>
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</ul>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiurzaiu138.htm">Save logical partitions</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzaiubackupbacking.htm">Back up a logical partition</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../icbase/iphai/backingupthehmc.htm" target="_blank">Backing up and restoring the HMC</a></div>
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<div><a href="../icbase/iphat/iphatlparkickoff.htm" target="_blank">Partitioning the server</a></div>
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</div>
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</div>
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</body>
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</html>
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