57 lines
3.4 KiB
HTML
57 lines
3.4 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Title" content="Remote load source mirroring used with local disk unit" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2002, 2006" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Remote load source mirroring used with local disk unit</title>
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</head>
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<body id="hdrrlsmld"><a name="hdrrlsmld"><!-- --></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">Remote load source mirroring used with local disk unit</h1>
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<div><p>Remote load source mirroring can be used to achieve IOP-level or bus-level
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protection of the load source mirrored pair, even without remote disk units
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or buses on the system. There is no special setup required, other than to
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ensure that a disk unit of the same capacity as the load source is attached
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to another IOP or bus on the system. If you want to achieve bus-level protection
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of all mirrored pairs in a disk pool, you should configure your system so
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that no more than one half of the disk units of any given capacity in that
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disk pool are attached to any single bus. If you want to achieve IOP-level
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protection of all mirrored pairs in a disk pool, you must have no more than
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one half of the disk units of any given capacity in the disk pool attached
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to any single IOP.</p>
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<p>After the system hardware is configured correctly, enable remote load source
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mirroring and start mirroring for the disk pools you want to protect. Use
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the normal start mirroring function. There is no special start mirroring function
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for remote load source support. The system detects that remote load source
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mirroring is enabled and automatically pairs disk units to provide the best
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level of protection possible. It is not possible to override or influence
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the pairing of the disk units other than by changing the way the hardware
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of the system is connected and configured. Typical mirroring restrictions
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that concern total disk pool capacity, an even number of disk units of each
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capacity, and such things, apply.</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="rzalyremoteload.htm">Remote load source mirroring</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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