54 lines
3.1 KiB
HTML
54 lines
3.1 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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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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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Migrating to a new input/output adapter" />
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<meta name="DC.Relation" scheme="URI" content="rzalydpp.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2002, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2002, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="migrating" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Migrating to a new input/output adapter</title>
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</head>
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<body id="migrating"><a name="migrating"><!-- --></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">Migrating to a new input/output adapter</h1>
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<div><div class="section"><h4 class="sectiontitle">RAID 5</h4><p>Before you begin the migration
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to the new input/output adapter (IOA), as with any configuration change, it
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is important to do a normal system turn off. This will assure that all of
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your cache data is written to disk before the power down completes. When a
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parity set under an IOA that was released before the V5R2 release is migrated
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to an IOA that was released after the V5R2 release, your disk units are not
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protected by device parity protection while parity is being regenerated.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Cannot migrate to old generation adapters</h4><p>You cannot
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migrate a parity set back to the old generation of adapters after you have
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made the change to a new adapter. You cannot migrated a parity set back to
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the old generation of adapters and keep the data in tact. This action requires
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a save and restore of disk unit data to prevent data loss. To migrate RAID
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5 protection to RAID 6 or RAID 6 protection to RAID 5 you must
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stop and restart the device parity protection.</p>
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<div class="note"><span class="notetitle">Note:</span> You cannot migrate
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RAID 6 to an adapter that does not support RAID 6.</div>
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</div>
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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="rzalydpp.htm">Device parity protection</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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