156 lines
8.9 KiB
HTML
156 lines
8.9 KiB
HTML
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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" 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="dc.language" scheme="rfc1766" 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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<meta name="dc.date" scheme="iso8601" content="2005-09-06" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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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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<title>Directory Server (LDAP) - Configure attribute cache</title>
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<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
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<link rel="stylesheet" type="text/css" href="ic.css" />
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</head>
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<body>
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<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
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<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
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<img src="delta.gif" alt="Start of change" /><img src="delta.gif" alt="Start of change" />
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<a name="rzahyconfattcache"></a>
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<h3 id="rzahyconfattcache">Configure attribute cache</h3>
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<p>Settings for the attribute cache are configured in both Web administration
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tool and the iSeries Navigator.</p>
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<p>To manually adjust the attribute cache settings in the Web administration
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tool, follow these steps.</p>
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<ol type="1">
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<li>Expand the <span class="bold">Server administration</span> category
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in the navigation area of the Web administration tool, and then select the <span class="bold">Attribute cache</span> tab in the right pane.
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<a name="wq202"></a>
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<div class="notetitle" id="wq202">Note:</div>
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<div class="notebody">To change server configuration settings using the tasks in the Server administration
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category of the Web Administration tool, you must authenticate to the server
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as an i5/OS user profile that has *ALLOBJ and IOSYSCFG special authorities.
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This can be done by authenticating as a projected user with the password
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for that profile. To bind as a projected user from the Web administration
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tool, enter a username of the form <tt class="xph">os400-profile=MYUSERNAME,cn=accounts,os400-sys=MYSYSTEM.COM</tt>, where MYUSERNAME and the MYSYSTEM.COM strings are replaced with your
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user profile name and the configured system projection suffix, respectively.</div></li>
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<li>Change the amount of memory in kilobytes available to the directory cache.
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The default is 16 384 kilobytes (16 MB).</li>
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<li>Change the amount of memory in kilobytes available to the change log cache.
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The default is 16 384 kilobytes (16 MB).
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<a name="wq203"></a>
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<div class="notetitle" id="wq203">Note:</div>
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<div class="notebody">This selection
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is disabled if change log has not been configured. Attribute caching for change
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log should be set to 0 and no attributes should be configured unless you do
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frequent searches within the change log and the performance of these searches
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is critical.</div></li>
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<li>Select the attribute that you want to cache from the <span class="bold">Available attributes</span> menu. Only those attributes that can be cached are
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displayed in this menu; for example, sn.
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<a name="wq204"></a>
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<div class="notetitle" id="wq204">Note:</div>
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<div class="notebody">An attribute remains
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in the list of available attributes until it has been placed in both the cn=directory
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and the cn=changelog containers.</div></li>
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<li>Click either <span class="bold">Add to cn=directory</span> or <span class="bold">Add to cn=changelog</span>. The attribute is displayed
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in the appropriate list box. You can list the same attribute in both containers.
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<a name="wq205"></a>
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<div class="notetitle" id="wq205">Note:</div>
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<div class="notebody"><span class="bold">Add to cn=changelog</span> is disabled if
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change log has not been configured. Attribute caching for change log should
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be set to 0 and no attributes should be configured unless you do frequent
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searches within the change log and the performance of these searches is critical.</div></li>
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<li>Repeat this process for each attribute you want to add to the attribute
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cache.</li>
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<li>When you are finished, click <span class="bold">OK</span>.</li></ol>
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<p>To enable automatic attribute caching in iSeries Navigator, take these
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steps:</p>
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<ol type="1">
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<li>In iSeries Navigator, expand <span class="bold">Network</span>.</li>
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<li>Expand <span class="bold">Servers</span>.</li>
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<li>Click <span class="bold">TCP/IP</span>.</li>
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<li> Right-click <span class="bold">IBM Directory Server</span> and select <span class="bold">Properties</span>.</li>
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<li>Click the <span class="bold">Performance</span> tab.</li>
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<li>Select <span class="bold">Enable automatic attribute caching</span> for
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either <span class="bold">Database</span> or <span class="bold">Change log</span>, or both. Automatic attribute caching for change log should
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not be enabled unless you do frequent searches within the change log and the
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performance of these searches is critical.</li>
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<li>Specify the <span class="bold">Start time</span> (in the server's
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local time) and <span class="bold">Interval</span> for each type of caching
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you choose to enable. For example, if you enable database caching and set
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the start time for 6.00 a.m. and the interval to be six hours, the cache will
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be automatically adjusted at 6 a.m., noon, 6 p.m., and midnight regardless
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of when the server was started or when the auto adjusting was configured.</li></ol>
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<a name="wq207"></a>
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<div class="notetitle" id="wq207">Note:</div>
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<div class="notebody">Automatic attribute caching will cache attributes up to the
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maximum amount of memory for caching as specified in the Web administration
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tool as described above.</div>
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<a name="wq208"></a>
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<table id="wq208" width="100%" summary="" border="1" frame="border" rules="all">
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<caption>Table 4. Interaction of attribute cache settings</caption>
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<thead valign="bottom">
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<tr>
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<th id="wq209" width="40%" align="left" valign="top">Activity</th>
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<th id="wq210" width="59%" align="left" valign="top">What occurs</th>
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</tr>
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</thead>
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<tbody valign="top">
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<tr>
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<td headers="wq209">Server startup</td>
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<td headers="wq210">If automatic attribute caching is currently enabled
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and automatic caching was enabled when the server was last stopped, the same
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attributes that were cached when the server stopped will be created when the
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server is restarted. If additional memory is still available for attribute
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caching, the attributes that were manually configured will be cached as well.
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If automatic attribute caching is currently enabled and was not enabled
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when the server was last stopped, the attributes that are manually configured
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for caching will be cached. In either case, the server will then automatically
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adjust the attribute caches based on the specified start time and time interval.
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If automatic caching is not enabled, the manually adjusted cache settings
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will take effect.</td>
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</tr>
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<tr>
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<td headers="wq209">Enable automatic attribute caching after server startup</td>
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<td headers="wq210">Automatic attribute caching will occur as described
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for server startup. Any manually configured attribute caches that do not
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fit within the amount of memory configured for attribute caching will be deleted.</td>
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</tr>
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<tr>
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<td headers="wq209">Disable automatic attribute caching after server startup</td>
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<td headers="wq210">Only attributes that were manually configured will be
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cached.</td>
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</tr>
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<tr>
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<td headers="wq209">Modify manually cached attributes while automatic caching
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is enabled after server startup</td>
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<td headers="wq210">Nothing will happen. The manual configuration will go
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into effect when automatic caching is disabled.</td>
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</tr>
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<tr>
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<td headers="wq209">Modify amount of memory available for caching after
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server startup</td>
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<td headers="wq210">If automatic caching is enabled, the server will immediately
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re-cache based on the new size. If automatic caching is disabled, the server
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will cache the manually configured attributes up to the new size.</td>
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</tr>
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<tr>
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<td headers="wq209">Modify start time or interval after server startup</td>
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<td headers="wq210">If automatic caching is enabled, the new settings will
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take effect at the start time or interval specified. If automatic caching
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is disabled, the settings are stored and go into effect when automatic caching
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is enabled.</td>
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</tr>
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</tbody>
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</table><img src="deltaend.gif" alt="End of change" /><img src="deltaend.gif" alt="End of change" />
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<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
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</body>
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</html>
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