81 lines
5.2 KiB
HTML
81 lines
5.2 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 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="concept" />
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<meta name="DC.Title" content="Enable a node to be added to a cluster" />
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<meta name="abstract" content="Before you can add a node to a cluster, you need to set a value for the Allow add to cluster (ALWADDCLU) network attribute." />
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<meta name="description" content="Before you can add a node to a cluster, you need to set a value for the Allow add to cluster (ALWADDCLU) network attribute." />
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<meta name="DC.Relation" scheme="URI" content="../cl/chgneta.htm" />
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<meta name="DC.Relation" scheme="URI" content="../rzahu/rzahurazhudigitalcertmngmnt.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<title>Enable a node to be added to a cluster</title>
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</head>
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<body id="rzaigconfigenablenode"><a name="rzaigconfigenablenode"><!-- --></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">Enable a node to be added to a cluster</h1>
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<div><p>Before you can add a node to a cluster, you need to set a value
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for the Allow add to cluster (ALWADDCLU) network attribute.</p>
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<p>Use the <span class="cmdname">Change Network Attributes (CHGNETA)</span> command
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on any server that you want to set up as a cluster node. The <span class="cmdname">Change
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Network Attributes (CHGNETA)</span> command changes the network attributes
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of a system. The ALWADDCLU network attribute specifies whether a node will
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allow another system to add it as a node in a cluster.</p>
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<div class="note"><span class="notetitle">Note:</span> You must have *IOSYSCFG authority to change the network attribute ALWADDCLU.</div>
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<p>You can pick one of these values:</p>
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<dl><dt class="dlterm"><u>*SAME</u></dt>
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<dd>The value does not change. The system is shipped with a value of *NONE.</dd>
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<dt class="dlterm">*NONE</dt>
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<dd>No other system can add this system as a node in a cluster.</dd>
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<dt class="dlterm">*ANY</dt>
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<dd>Any other system can add this system as a node in a cluster.</dd>
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<dt class="dlterm">*RQSAUT</dt>
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<dd>Any other system can add this system as a node in a cluster only after
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the cluster add request has been authenticated.</dd>
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</dl>
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<p>The ALWADDCLU network attribute is checked to see if the node that is being
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added is allowed to be part of the cluster and whether to validate the cluster
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request through the use of X.509 digital certificates. A <strong>digital certificate</strong> is
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a form of personal identification that can be verified electronically. If
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validation is required, the requesting node and the node that is being added
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must have the following installed on the systems:</p>
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<ul><li><span class="keyword">i5/OS™</span> Option 34 (Digital
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Certificate Manager)</li>
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<li>Cryptographic Access Provider</li>
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</ul>
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<p>When *RQSAUT is selected, the certificate authority trust list for the <span class="keyword">i5/OS</span> cluster security server application
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must be properly set up. The server application identifier is QIBM_QCST_CLUSTER_SECURITY.
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At a minimum, add certificate authorities for those nodes that you allow to
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join the cluster.</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="rzaigconfigsecure.htm" title="Consider some of the security issues you need to consider when you plan to use clustering on your systems.">Cluster security</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="../rzahu/rzahurazhudigitalcertmngmnt.htm">Digital Certificate Management</a></div>
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<div><a href="rzaigtroubleshootcommonproblems.htm" title="Lists some of the most common problems that can occur in a cluster, as well as ways to avoid and recover from them.">Common cluster problems</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="../cl/chgneta.htm">Change Network Attributes (CHGNETA) command</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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