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<h1 class="topictitle1">Perform main storage dumps on servers with logical partitions</h1>
<div><p>When the server has a failure, it may create a main storage dump.
A main storage dump copies the contents of the server's memory to disk. It
is an important tool for problem analysis. On a server with logical partitions,
there are two types of failures that may cause main storage dumps: server
failure and secondary partition failure.</p>
<p>When your server performs a main storage dump, <span class="uicontrol">contact your
customer support representative.</span></p>
<p>Failures in the primary partition caused by server processing
hardware or main storage hardware will cause the entire server to fail. Software
failures in a secondary partition will cause only that logical partition to
fail.</p>
<p>A server failure may cause a server main storage dump. A secondary partition
failure may cause a main storage dump only on that logical partition.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaittscenter.htm" title="Report server problems that require technical assistance from the Technical Support Center.">Situations requiring the assistance of a service representative</a></div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
<div><a href="rzaitforcemsd.htm" title="When the server has a failure, it may create a main storage dump. A main storage dump copies the contents of the server's main storage to disk. It can be an important tool for problem analysis. When your server performs a main storage dump, contact your customer support representative.">Forcing a main storage dump on servers with logical partitions</a></div>
<div><a href="../rzahb/rzahbmainstoragedump.htm">Perform a main storage dump</a></div>
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