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HTML
97 lines
7.0 KiB
HTML
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Reporting configured capacity" />
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<meta name="abstract" content="Find out where the information for configured capacity is recorded." />
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<meta name="description" content="Find out where the information for configured capacity is recorded." />
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<meta name="DC.Relation" scheme="URI" content="rzahxqapmsystem.htm" />
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<title>Reporting configured capacity</title>
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</head>
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<body id="rzahxuncapped"><a name="rzahxuncapped"><!-- --></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">Reporting configured capacity</h1>
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<div><p>Find out where the information for configured capacity is recorded.</p>
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<p><img src="./delta.gif" alt="Start of change" />The partition capacity values are determined initially when
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the partition is started and depends on the capacity resources available at
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the time. These initial values can be altered through configuration changes
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while the partition is active. <img src="./deltaend.gif" alt="End of change" /></p>
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<p>Logical partitions (LPARs) enable some partitions to exceed their configured
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capacity in certain situations. During these times, the processor utilization
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metrics of these partitions can be greater than 100% of the configured capacity.</p>
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<p>The usage and capacity information is recorded in the QAPMSYSTEM database
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file. The virtual processor information is recorded in the QAPMSYSCPU database
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file. The following values summarize this information:</p>
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<dl><dt class="dlterm">Virtual processors</dt>
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<dd>The number of processors that are assigned to a logical partition that
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is sharing processor capacity of the shared processor pool. This value determines
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the number of concurrent processors that could be active in the logical partition. <span><img src="./delta.gif" alt="Start of change" />This value is included in the QAPMSYSCPU performance database file
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in the field (or column) named SCTACT.<img src="./deltaend.gif" alt="End of change" /></span></dd>
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<dt class="dlterm">Shared processor pool capacity available</dt>
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<dd>Total processor capacity in the shared processor pool available for use
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by shared processor logical partitions. This value is included in the <span><img src="./delta.gif" alt="Start of change" />QAPMSYSTEM<img src="./deltaend.gif" alt="End of change" /></span> performance database file in a column named SYSPLA.
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If partitions configured as uncapped compete for available shared pool capacity
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in excess of the guaranteed amount, the distribution of processor capacity
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is determined by the uncapped weight assigned to the logical partition.</dd>
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<dt class="dlterm">Shared processor capacity used</dt>
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<dd>Total amount of shared processor capacity used by all active shared processor
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logical partitions. Total amount of CPU used within the shared pool by all
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partitions that share the pool. This value is included in the <span><img src="./delta.gif" alt="Start of change" />QAPMSYSTEM<img src="./deltaend.gif" alt="End of change" /></span> performance
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database file in a column named SYSPLU.</dd>
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<dt class="dlterm">Partition guaranteed capacity</dt>
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<dd>Processor capacity configured to a shared processor logical partition
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from the shared processor pool. This value is included in the<span><img src="./delta.gif" alt="Start of change" />QAPMSYSTEM<img src="./deltaend.gif" alt="End of change" /></span> performance
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database file in a column named SYSCTA. The 5250 OLTP capacity configured
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is recorded in column named SYIFTA.</dd>
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<dt class="dlterm">Partition processor utilization</dt>
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<dd><span><img src="./delta.gif" alt="Start of change" />Total CPU time used by a logical partition.<img src="./deltaend.gif" alt="End of change" /></span> In
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a shared processor logical partition with uncapped capacity, this value may
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exceed the guaranteed capacity if there is unused capacity in the shared processor
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pool. This value is included in the<span><img src="./delta.gif" alt="Start of change" />QAPMSYSTEM<img src="./deltaend.gif" alt="End of change" /></span> performance
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database file in a column named SYSPTU. The 5250 OLTP capacity used is recorded
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in column named SYIFUS. The maximum processor capacity in a partition is determined
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by the number of virtual processors configured.</dd>
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<dt class="dlterm">Partition available capacity</dt>
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<dd>The amount of processor capacity that could have been used by the logical
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partition. This value is included in the<span><img src="./delta.gif" alt="Start of change" />QAPMSYSTEM<img src="./deltaend.gif" alt="End of change" /></span> performance
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database file in a column named SYSUTA. This is the processor capacity utilized
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(SYSPTU) plus the unused capacity in the shared processor pool (SYSPLA), subject
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to the following limits:<ul><li>The minimum is the configured (guaranteed) capacity.</li>
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<li>The maximum is the capacity based on the number of virtual processors
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assigned to the partition and pool.</li>
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</ul>
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</dd>
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</dl>
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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="rzahxperftoolsconcepts.htm" title="Describes a variety of tools to help you collect and analyze performance information. Find detailed information about exactly which tools perform which functions and how they work.">Performance Tools concepts</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="rzahxqapmsystem.htm">Performance data files: QAPMSYSTEM</a></div>
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<div><a href="rzahxqapmsyscpu.htm">Performance data files: QAPMSYSCPU</a></div>
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<div><a href="rzahxreportcolumns.htm">Performance Report columns</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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