201 lines
6.0 KiB
HTML
201 lines
6.0 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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<title>Modify Partition Resources (dlpar_set_resources) API</title>
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<!-- Begin Header Records ========================================== -->
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<!-- Created: -->
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<!-- 040404 jlv New API -->
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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!-- 041109 AP API update -->
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<!-- End Header Records -->
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</head>
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<body>
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<!-- Java sync-link -->
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<a name="Top_Of_Page"></a>
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<h2>Modify Partition Resources (dlpar_set_resources) API</h2>
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<div class="box" style="width: 60%;">
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<br>
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Syntax:
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<pre>#include <qpmlpmgt.h>
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int dlpar_set_resources (void *attribute_value, int attribute_id);
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</pre>
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<br>
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Service Program Name: QPMLPMGT<br>
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<!-- iddvc RMBR -->
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<br>
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Default Public Authority: *EXCLUDE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Yes<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>Modify Partition Resources (dlpar_set_resources) API is used to modify the configuration
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of the partition where this API was called.
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The API accepts the identifier of the partition configuration attribute intended
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to be modified and the new value for this attribute.
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The API modifies one partition configuration attribute at a time. </p>
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<p>The modification of partition configuration attributes by dlpar_set_resources() API is subject
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to configuration constraints which are enforced by iSeries Hypervisor.</p>
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<br>
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<h3>Authorities and Locks</h3>
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<p><em>*ALLOBJ special authority is required to change partition configuration.</em></p>
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<br>
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<h3>Parameters</h3>
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<dl><dt><strong>Configuration attribute value </strong> (<em>attribute_value</em>)</dt><dd>INPUT; CHAR(*)</dd></dl>
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<p>This parameter contains a new value for the configuration attribute identified by the
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<em>Configuration attribute ID</em> parameter. This value will have a different format depending on the configuration attribute
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being processed as follows:</p>
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<table width="50%">
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<!-- cols="20 30" -->
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<tr>
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<td><strong>Attribute</strong></td>
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<td><strong>Format</strong></td>
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</tr>
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<tr>
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<td>Processing capacity</td>
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<td>UNSIGNED BINARY(4)</td>
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</tr>
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<tr>
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<td>Variable capacity weight</td>
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<td>UNSIGNED BINARY(4)</td>
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</tr>
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<tr>
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<td>Interactive capacity</td>
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<td>UNSIGNED BINARY(4)</td>
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</tr>
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<tr>
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<td>Number of virtual processors</td>
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<td>UNSIGNED BINARY(4)</td>
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</tr>
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<tr>
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<td>Online memory</td>
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<td>UNSIGNED BINARY(8)</td>
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</tr>
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</tbody></table>
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<br>
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<p><strong>Interactive capacity</strong> is the new value for the portion of the physical machine interactive capacity this partition can use (in units of 1/100s of a percent).<p>
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<p><strong>Number of virtual processors</strong> is the new value for the number of virtual processors in this partition.</p>
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<p><strong>Online memory</strong> is the new value for partition online memory size (in megabytes).
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<p><strong>Processing capacity</strong> is the new value for the partition's processing capacity (in units of 1/100 of a physical processor).</p>
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<p><strong>Variable capacity weight</strong> is the new value for the weighting factor that is used when assigning unused CPU cycles in the shared processor pool to the partition. This factor is in the range of 0 - 255.</p>
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<br>
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<dl><dt><strong>Configuration attribute ID </strong> (<em>attribute_id</em>)</dt><dd>INPUT; CHAR(*)</dd></dl>
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<p>This parameter contains an ID of the configuration attribute to change.
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The following values are valid for this parameter.:</p>
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<table width="50%">
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<!-- cols="10 40" -->
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<tr>
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<td>1</td>
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<td>Processing capacity</td>
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</tr>
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<tr>
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<td>2</td>
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<td>Variable capacity weight</td>
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</tr>
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<tr>
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<td>3</td>
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<td>Interactive capacity</td>
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</tr>
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<tr>
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<td>4</td>
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<td>Number of virtual processors</td>
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</tr>
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<tr>
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<td>5</td>
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<td>Online memory</td>
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</tr>
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</tbody></table>
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<br>
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<h3>Return Value</h3>
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<p>Depending on whether the call was successful, there are several
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possible return values:</p>
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<table cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<td align="left" valign="top"><strong>0</strong></td>
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<td align="left" valign="top">Request to change partition configuration was accepted.
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<p>Note that configuration change will happen asynchronously to the API call. Precise moment when actual configuration change is complete, is unpredictable.</p>
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<p>It is possible that configuration change will only be partially satisfied, if system does not have enough resources to fulfill the request.</p></td></tr>
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<tr>
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<td align="left" valign="top"><strong>Negative value</strong></td>
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<td align="left" valign="top">Request to change partition configuration failed.
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Return value is set to indicate the kind of error that prevented the
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change of the configuration attribute as follows:
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<dl compact>
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<dt><strong>-1</strong></dt>
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<dd>API was called with incorrect parameters.</dd>
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<dt><strong>-2</strong></dt>
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<dd>Configuration change was rejected because some LPAR configuration constraint was violated.</dd>
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<dt><strong>-3</strong></dt>
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<dd>Configuration change failed because of hardware fault.</dd>
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<dt><strong>-4</strong></dt>
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<dd>Configuration change failed because of insufficient authority.</dd>
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<dt><strong>-5</strong></dt>
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<dd>Configuration change failed because of unexpected exception.
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(See joblog for the details about exception.)</dd>
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</dl>
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</td></tr>
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</table>
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<br>
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<hr>
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API introduced: V5R3
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href="config.htm">Configuration APIs</a> | <a href="aplist.htm">APIs by
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category</a></td>
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</tr>
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</table>
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</center>
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</body></html>
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