66 lines
3.7 KiB
HTML
66 lines
3.7 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 name="DC.Title" content="Plan for mirrored protection" />
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<meta name="DC.Relation" scheme="URI" content="rzalymirror4.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzalymirror5.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzalymirror6.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2002, 2006" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Plan for mirrored protection</title>
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</head>
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<body id="hdrmirrorplan"><a name="hdrmirrorplan"><!-- --></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 mirrored protection</h1>
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<div><p>If you have a multibus system or a large single-bus system, you should
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consider using mirrored protection. The greater the number of disk units that
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are attached to a system, the more frequent disk-related hardware failures
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are because there are more individual pieces of hardware that can fail. Therefore,
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the possibility of data loss or loss of availability as a result of a disk
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or other hardware failure becomes more likely. Also, as the amount of disk
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storage on a system increases, the recovery time after a disk storage subsystem
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hardware failure increases significantly. Downtime becomes more frequent,
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more lengthy, and more costly.</p>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzalymirror1.htm">Decide which disk pools to protect</a></strong><br />
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</li>
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<li class="ulchildlink"><strong><a href="rzalymirror2.htm">Determine the disk units that are needed</a></strong><br />
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</li>
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<li class="ulchildlink"><strong><a href="rzalymirror3.htm">Determine the level of protection that you want</a></strong><br />
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</li>
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<li class="ulchildlink"><strong><a href="rzalymirror4.htm">Determine the hardware that is needed for mirroring</a></strong><br />
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</li>
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<li class="ulchildlink"><strong><a href="rzalymirror5.htm">Determine the extra hardware needed for performance</a></strong><br />
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</li>
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<li class="ulchildlink"><strong><a href="rzalymirror6.htm">Order and install the new hardware</a></strong><br />
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</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzalyprtctvsdtalss.htm">Plan for 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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