48 lines
2.8 KiB
HTML
48 lines
2.8 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="topic" />
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<meta name="DC.Title" content="Plan for spare disk units" />
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<meta name="DC.Relation" scheme="URI" content="rzalymirror2.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="hdrplnspare" />
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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>Plan for spare disk units</title>
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</head>
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<body id="hdrplnspare"><a name="hdrplnspare"><!-- --></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">Plan for spare disk units</h1>
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<div><p>Spare disk units can reduce the time the system runs without mirrored protection
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for a mirrored pair after a disk unit failure. If a disk unit fails and a
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spare disk unit of similar capacity is available, that spare disk unit can
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be used to replace the failed disk unit. Using the DST or SST replace option,
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the user selects the failed disk unit to replace, then selects a spare disk
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unit to replace it. The system logically replaces the failed disk unit with
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the selected spare disk unit, then synchronizes the new disk unit with the
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remaining good disk unit of the mirrored pair. Mirrored protection for that
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pair is again active when synchronization is completed (typically, in less
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than an hour). However, it might take several hours from the time that a service
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representative is called until the failed disk unit is repaired and synchronized,
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and mirrored protection is again active for that pair.</p>
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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="rzalymirror2.htm">Determine the disk units that are needed</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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