87 lines
6.3 KiB
HTML
87 lines
6.3 KiB
HTML
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<meta name="abstract" content="Understand the advantages of partitioning your server and practical scenarios your company can use with this advanced technology." />
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<title>How logical partitioning can work for you</title>
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<body id="rzaitpartoptions"><a name="rzaitpartoptions"><!-- --></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">How logical partitioning can work for you</h1>
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<div><p>Understand the advantages of partitioning your server and practical
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scenarios your company can use with this advanced technology.</p>
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<p>Logical partitions on an iSeries™ server could prove beneficial in the following
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scenarios:</p>
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<div class="section"><h4 class="sectiontitle">Creating a Mixed Production and Test Environment</h4>You
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can create a combination production and test environment on the same server.
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You can use a logical partition as a test partition or a production partition.
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A production partition runs your main business applications. A failure in
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a production partition could significantly hinder business operations and
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cost the customer time and money. A test partition tests software. This might
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include <span class="keyword">i5/OS™</span> release testing.
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A failure in a test partition, while not necessarily planned, will not disrupt
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normal business operations.</div>
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<div class="section"><h4 class="sectiontitle">Creating a Multiple Production Partition Environment </h4>You
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create multiple production partitions in your secondary partitions. In this
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situation, you dedicate the primary partition to partition management.</div>
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<div class="section"><h4 class="sectiontitle">Consolidation</h4>A logically partitioned server can reduce
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the number of servers that are needed within an enterprise. You can consolidate
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several servers into a single logically partitioned system. This eliminates
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the need for, and expense of, additional equipment. You can shift resources
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from one logical partition to another as needs change.</div>
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<div class="section"><h4 class="sectiontitle">Hot Backup</h4>When a secondary partition replicates another
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logical partition within the same system, to switch to the backup during partition
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failure would cause minimal inconvenience. This configuration also minimizes
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the effect of long save windows. You can take the backup partition off line
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and save, while the other logical partition continues to perform production
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work. You will need special software to use this hot backup strategy.</div>
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<div class="section"><h4 class="sectiontitle">Integrated Cluster</h4>Using OptiConnect and high availability
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application software, your partitioned server can run as an integrated cluster.
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You can use an integrated cluster to protect your server from most unscheduled
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failures within a secondary partition.</div>
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<div class="section"><h4 class="sectiontitle">Maintaining Independent Systems</h4>Dedicating a portion
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of the resources (disk storage unit, processors, memory, and I/O devices)
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to a partition achieves logical isolation of software. Logical partitions
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also have some hardware fault tolerance if configured properly. Interactive
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and batch workloads which may not run well together on a single machine can
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be isolated and run efficiently in separate partitions.</div>
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<div class="section"><h4 class="sectiontitle">Running Linux<sup>®</sup></h4><p>You could consolidate several Linux servers
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to an iSeries server. Linux enhances iSeries flexibility
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by enabling another application environment. Linux applications can access DB2<sup>®</sup> UDB as well
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as <span class="keyword">i5/OS</span> programs and services
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using virtual Ethernet.</p>
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</div>
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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="rzaitconceptoverview.htm" title="Use this information to get the technical facts about logical partitions to find out what you need to know about your hardware, and to discover the multiple uses you can get from logical partitions.">Logical partition concepts</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="rzaitscenarios.htm" title="Read logical and guest partition scenarios to understand how a partitioned server can be configured and used.">Logical and guest partition scenarios</a></div>
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<div><a href="rzaitchoosenumber.htm" title="The number of processors you want to add to a logical partition depends on the planned workload for the partition and the desired level of performance.">Determine the possible number of logical partitions</a></div>
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</div>
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</div>
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</body>
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