51 lines
2.9 KiB
HTML
51 lines
2.9 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="Mirrored protection benefits" />
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<meta name="DC.Relation" scheme="URI" content="rzalydpconcepts.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="hdrmirrorben" />
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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>Mirrored protection benefits</title>
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</head>
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<body id="hdrmirrorben"><a name="hdrmirrorben"><!-- --></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">Mirrored protection benefits</h1>
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<div><p>With the best possible mirrored protection configuration, the system continues
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to run after a single disk-related hardware failure. On some system units,
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the failed hardware can sometimes be repaired or replaced without having to
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turn off the system. If the failing component is one that cannot be repaired
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while the system is running, such as a bus or an I/O processor, the system typically
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continues to run after the failure. Maintenance can be deferred, the system
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can be shut down normally, and a long recovery time can be avoided.</p>
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<p>Even if your system is not a large one, mirrored protection can provide
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valuable protection. A disk or disk-related hardware failure on an unprotected
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system leaves your system unusable for several hours. The actual time depends
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on the kind of failure, the amount of disk storage, your backup strategy,
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the speed of your tape unit, and the type and amount of processing the system
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performs. If you or your enterprise cannot tolerate this loss of availability,
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you should consider mirrored protection for your system, regardless of your
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system's size.</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="rzalydpconcepts.htm">Disk 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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