62 lines
4.2 KiB
HTML
62 lines
4.2 KiB
HTML
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Backup from a second copy" />
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<meta name="abstract" content="Several techniques can be implemented to reduce the backup window by conducting backups from a second copy of the data." />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<title>Backup from a second copy</title>
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</head>
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<body id="rzalwbackup2cpy"><a name="rzalwbackup2cpy"><!-- --></a>
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<img src="./delta.gif" alt="Start of change" /><!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Backup from a second copy</h1>
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<div><p>Several techniques can be implemented to reduce the backup window
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by conducting backups from a second copy of the data. </p>
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<div class="p"> <div class="note"><span class="notetitle">Note:</span> <img src="./delta.gif" alt="Start of change" />If you are saving from a second copy, you should ensure
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that the contents of the copy are consistent. You may need to quiesce the
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application.<img src="./deltaend.gif" alt="End of change" /></div>
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These techniques include: </div>
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<div class="section"><h4 class="sectiontitle">Saving from a second system</h4><p>Some technologies, such
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as replication, make available a second copy of the data that can be used
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to shift the save window from the primary copy to the secondary copy. This
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technique can eliminate the backup window on the primary system. Therefore,
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it does not affect production since the backup processing is done on a second
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system. </p>
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</div>
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<div class="section"><img src="./delta.gif" alt="Start of change" /><h4 class="sectiontitle">IBM<sup>®</sup> TotalStorage<sup>®</sup> Enterprise
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Storage Server<sup>®</sup> (ESS) FlashCopy<sup>®</sup> used with the iSeries Copy Services for
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ESS toolkit</h4><p id="rzalwbackup2cpy__totalstoragep1"><a name="rzalwbackup2cpy__totalstoragep1"><!-- --></a>IBM TotalStorage Enterprise Storage Server
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(ESS) provides enhanced storage capabilities. This technology uses the ESS
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function of FlashCopy on
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an independent disk pool. A single ESS server creates a point-in-time version
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of the independent disk pool where the host is not aware of the copy. The
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toolkit enables bringing the copy on to the backup system to perform saves
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or other processing. For information on IBM TotalStorage (ESS) and its features,
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see <a href="http://www-1.ibm.com/servers/storage/index.html" target="_blank">IBM TotalStorage</a> website.</p>
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<img src="./deltaend.gif" alt="End of change" /></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="rzalwbackup_window.htm" title="By reducing the amount of time it takes to complete your backups, you can also reduce the amount of time your system is unavailable.">Shorten backup windows</a></div>
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</div>
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</div>
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<img src="./deltaend.gif" alt="End of change" /></body>
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</html> |