47 lines
2.9 KiB
HTML
47 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="Example: Switchable expansion unit" />
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<meta name="DC.Relation" scheme="URI" content="rzalyswitchableiasps.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="rzalyexampleswitchabletower" />
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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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<!-- 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>Example: Switchable expansion unit</title>
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</head>
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<body id="rzalyexampleswitchabletower"><a name="rzalyexampleswitchabletower"><!-- --></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">Example: Switchable expansion unit</h1>
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<div><div class="fignone"><p>In this example, the following figure shows a cluster consisting of four
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nodes. Nodes named A, B, and C are defined to be in the same device domain.
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There are two switchable expansion units - one contains IASP33 and the other
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contains IASP34 and IASP35. The expansion unit containing IASP33 is on an
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HSL loop that also contains nodes A and B. This first expansion unit can
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be switched between nodes A and B. The expansion unit containing IASP34 and
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IASP35 can be on another HSL loop that also contains nodes B and C. This
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second expansion unit can be switched between nodes B and C. Node D is contained
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in the cluster, but is not a member of the device domain and therefore can
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only access IASP36, a stand-alone (or dedicated) independent disk pool.</p>
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<br /><img src="rzaly504.gif" alt="A cluster featuring two device CRGs, two switchable expansion units, and a stand-alone IASP." /><br /></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="rzalyswitchableiasps.htm">Examples: Switchable independent disk pools</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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