66 lines
3.5 KiB
HTML
66 lines
3.5 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="Prepare your system for remote mirroring" />
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<meta name="DC.Relation" scheme="URI" content="rzalyprtctvsdtalss.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzalyfindrb.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzalychgrb.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="hdrremoteplan" />
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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>Prepare your system for remote mirroring</title>
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</head>
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<body id="hdrremoteplan"><a name="hdrremoteplan"><!-- --></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">Prepare your system for remote mirroring</h1>
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<div><p>When you start remote system mirroring, the local disk unit is mirrored
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to the remote disk unit. If a site disaster occurs at either the local or
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remote location, a complete copy of all data on the system still exists, the
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system configuration can be recovered, and processing can continue. To provide
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protection against a site disaster, all disk units in all disk pools of the
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system must be mirrored in local-remote pairs. Follow these steps to prepare
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your system for remote mirroring:</p>
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<ol><li>Plan which optical buses will control disk units at the remote site.
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<ul><li>It is not functionally necessary that the local site and the remote site
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use the same number of buses. However, it is simplest to configure and understand
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the system if the number of remote and local buses and disk units are equal.</li>
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<li>It is functionally necessary that both the local and remote sites have
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the same number of each capacity of disk units in each disk pool.</li>
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</ul>
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</li>
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<li>Plan the distribution of disk units, move disk units if necessary, and
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verify that half of each capacity of disk units in each disk pool is attached
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to the local and remote set of buses.</li>
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<li>Indicate to the system which buses control remote disk units and which
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buses control local disk units. </li>
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</ol>
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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="rzalyfindrb.htm">Find remote buses</a></strong><br />
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</li>
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<li class="ulchildlink"><strong><a href="rzalychgrb.htm">Change remote bus resource names</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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