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8.0 KiB
HTML
102 lines
8.0 KiB
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<title>Determine when and how to expand your system</title>
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<body id="rzahxplancapacity"><a name="rzahxplancapacity"><!-- --></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">Determine when and how to expand your system</h1>
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<div><p>As your business needs change, your system must also change. To
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prepare for any changes, you will want to model the current system and then
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see what would happen if the system, the configuration, or the workload were
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changed.</p>
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<p>As your business needs evolve, so do your system needs. To plan for future
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system needs and growth, you will need to determine what would happen if the
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system, the configuration, or the workload were changed. This process is called
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trend analysis and should be done monthly. As your system approaches resource
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capacity guidelines, you may want to gather this data more frequently.</p>
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<p>Trend analysis should be done separately for interactive and batch environments.
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If your company uses a certain application extensively, you may want to perform
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a trend analysis for the application. Another environment that may be important
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to track would be the end-of-month processing. It is important that you collect
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trend analysis data consistently. If your system's peak workload hours are
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between 10:00 AM and 2:00 PM and you collect trend analysis data for this
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time period, do not compare this data to data collected from other time periods.</p>
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<p>To do a proper job of capacity planning and performance analysis, you must
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collect, analyze, maintain, and archive performance data. IBM<sup>®</sup> offers several
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tools that help you with your capacity planning, resource estimating, and
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sizing:</p>
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<dl><dt class="dlterm">IBM Performance
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Management for eServer™ <span class="keyword">iSeries™</span></dt>
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<dd>PM <span class="keyword">iSeries</span> completely automates
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collecting data, analyzing data, and archiving data and provides you with
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summarized performance and capacity information that is easy to understand.
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PM <span class="keyword">iSeries</span> helps you plan for
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and manage system resources through ongoing analysis of key performance indicators.
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This function ships with the <span class="keyword">i5/OS™</span> licensed
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program. There is nothing that you need to do other than activate the function
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and periodically check that the data is being collected and transmitted to IBM.
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All collection sites are network secure, and the PM <span class="keyword">iSeries</span> service
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transmits only nonproprietary performance data to IBM. The time of the transfer is completely
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under your control.</dd>
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<dt class="dlterm">Workload Estimator</dt>
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<dd>The Workload Estimator is a tool that helps you size your system needs
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based on estimated workloads for specific workload types. Through a web-based
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application, you can size the upgrade to the required <span class="keyword">iSeries</span> system
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that accommodates your existing system's utilization, performance, and growth
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as reported by PM <span class="keyword">iSeries</span>.
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As an additional option, sizings can also include capacity for adding specific
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applications like Domino<sup>®</sup>, Java™, and WebSphere<sup>®</sup>, or the consolidation of
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multiple workloads on one system. This capability allows you to plan for future
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system requirements based on existing utilization data coming from your own
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system.</dd>
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<dt class="dlterm">PATROL for <span class="keyword">iSeries</span> - Predict</dt>
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<dd>This product helps manage <span class="keyword">iSeries</span> performance
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by automating many of the routine administration tasks required for high availability
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and optimal performance. Additionally, it offers detailed capacity planning
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information to help you plan the growth of your <span class="keyword">iSeries</span> environment.</dd>
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</dl>
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<p>See Select a performance management strategy for more information about
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creating and implementing a performance strategy.</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="rzahxplanparent.htm" title="Setting performance objectives for your iSeries server will allow you to have measurable performance benchmarks to compare your performance data. This topic will explain how to set those benchmarks and how to use them later.">Plan for performance</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="rzahxplangrow1pm1.htm" title="PM iSeries automates the collection, archival, and analysis of system performance data and returns reports to help you manage system resources and capacity. PM iSeries uses the performance data collected by Collection Services.">IBM Performance Management for eServer iSeries</a></div>
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<div><a href="rzahxwrkldest.htm" title="Helps you plan the size and timing requirements of your next upgrade. This tool is often used with PM iSeries to analyze trends in system performance and helps you efficiently manage the growth and expansion of your iSeries server.">Workload Estimator for iSeries</a></div>
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<div><a href="rzahxpatrol.htm" title="PATROL for iSeries (AS/400) - Predict helps manage iSeries performance by automating many of the routine administration tasks required for high availability and optimal performance. Additionally, this product offers detailed capacity planning information to help you plan the growth of your iSeries environment.">PATROL for iSeries (AS/400) - Predict</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="rzahxplanperfstrategy.htm" title="Different business needs require different performance management strategies. Here are three basic business models and their suggested performance management strategies.">Select a performance management strategy</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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