57 lines
3.4 KiB
HTML
57 lines
3.4 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE html
|
|
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html lang="en-us" xml:lang="en-us">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<meta name="security" content="public" />
|
|
<meta name="Robots" content="index,follow" />
|
|
<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
|
|
<meta name="DC.Type" content="topic" />
|
|
<meta name="DC.Title" content="Remote load source mirroring used with local disk unit" />
|
|
<meta name="DC.Relation" scheme="URI" content="rzalyremoteload.htm" />
|
|
<meta name="copyright" content="(C) Copyright IBM Corporation 2002, 2006" />
|
|
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2002, 2006" />
|
|
<meta name="DC.Format" content="XHTML" />
|
|
<meta name="DC.Identifier" content="hdrrlsmld" />
|
|
<meta name="DC.Language" content="en-us" />
|
|
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
|
<!-- US Government Users Restricted Rights -->
|
|
<!-- Use, duplication or disclosure restricted by -->
|
|
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
|
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
|
|
<link rel="stylesheet" type="text/css" href="./ic.css" />
|
|
<title>Remote load source mirroring used with local disk unit</title>
|
|
</head>
|
|
<body id="hdrrlsmld"><a name="hdrrlsmld"><!-- --></a>
|
|
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
|
<h1 class="topictitle1">Remote load source mirroring used with local disk unit</h1>
|
|
<div><p>Remote load source mirroring can be used to achieve IOP-level or bus-level
|
|
protection of the load source mirrored pair, even without remote disk units
|
|
or buses on the system. There is no special setup required, other than to
|
|
ensure that a disk unit of the same capacity as the load source is attached
|
|
to another IOP or bus on the system. If you want to achieve bus-level protection
|
|
of all mirrored pairs in a disk pool, you should configure your system so
|
|
that no more than one half of the disk units of any given capacity in that
|
|
disk pool are attached to any single bus. If you want to achieve IOP-level
|
|
protection of all mirrored pairs in a disk pool, you must have no more than
|
|
one half of the disk units of any given capacity in the disk pool attached
|
|
to any single IOP.</p>
|
|
<p>After the system hardware is configured correctly, enable remote load source
|
|
mirroring and start mirroring for the disk pools you want to protect. Use
|
|
the normal start mirroring function. There is no special start mirroring function
|
|
for remote load source support. The system detects that remote load source
|
|
mirroring is enabled and automatically pairs disk units to provide the best
|
|
level of protection possible. It is not possible to override or influence
|
|
the pairing of the disk units other than by changing the way the hardware
|
|
of the system is connected and configured. Typical mirroring restrictions
|
|
that concern total disk pool capacity, an even number of disk units of each
|
|
capacity, and such things, apply.</p>
|
|
</div>
|
|
<div>
|
|
<div class="familylinks">
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzalyremoteload.htm">Remote load source mirroring</a></div>
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html> |