64 lines
4.7 KiB
HTML
64 lines
4.7 KiB
HTML
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<meta name="DC.Title" content="Hardware requirements for clusters" />
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<meta name="abstract" content="Any iSeries model that is capable of running i5/OS V4R4M0 or later is compatible for using clustering." />
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<meta name="description" content="Any iSeries model that is capable of running i5/OS V4R4M0 or later is compatible for using clustering." />
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<title>Hardware requirements for clusters</title>
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<body id="rzaigplanhardware"><a name="rzaigplanhardware"><!-- --></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">Hardware requirements for clusters</h1>
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<div><p>Any <span class="keyword">iSeries™</span> model
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that is capable of running <span class="keyword">i5/OS™</span> V4R4M0
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or later is compatible for using clustering.</p>
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<p>In addition, you should provide protection from a power loss through an
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external <a href="../rzahr/rzahrupsco.htm">uninterruptible
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power supply</a> or equivalent. Otherwise, a sudden power loss on a cluster
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node can result in a <a href="rzaigconceptpartition.htm">cluster partition</a> state rather than a <a href="rzaigconceptsfailover.htm">failover</a>.</p>
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<p>Clustering uses Internet Protocol (IP) multicast capabilities. Multicast
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does not map well to all types of physical media. For more information about
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multicast restrictions that may apply to your particular hardware, see the <a href="../rzai2/rzai2kickoff.htm">TCP/IP Setup</a>.</p>
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<p>If you plan to use independent disk pools in your cluster, refer to the <a href="../rzaly/rzalyhardware.htm">Hardware requirements</a> for
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independent disk pools topic. You can also protect your disks with mirrored
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protection or device parity protection. Using these solutions on your primary
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system prevents a failover from occurring should a protected disk fail. It
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also is a good idea to have these solutions on your backup system in case
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a failover should occur. See <a href="../rzaly/rzalydpconcepts.htm">Disk protection</a> for details.</p>
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<div class="note"><span class="notetitle">Note:</span> <img src="./delta.gif" alt="Start of change" />For details on other requirements that are necessary
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before configuring clusters, see <a href="rzaigconfigchecklist.htm">Cluster configuration checklist</a>.<img src="./deltaend.gif" alt="End of change" /></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="rzaigplanrequirements.htm" title="Outlines the hardware, software, and communications requirements for using clusters.">Cluster requirements</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="../rzahr/rzahrupsco.htm">Uninterruptible power supply</a></div>
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<div><a href="rzaigconceptpartition.htm" title="A cluster partition is a subset of the active cluster nodes that results from a communications failure. Members of a partition maintain connectivity with each other.">Cluster partition</a></div>
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<div><a href="rzaigconceptsfailover.htm" title="Failover occurs when a server in a cluster automatically switches over to one or more backup servers in the event of a system failure.">Failover</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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