65 lines
4.3 KiB
HTML
65 lines
4.3 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 xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-us">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<meta name="dc.language" scheme="rfc1766" 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. -->
|
|
<meta name="dc.date" scheme="iso8601" content="2005-09-13" />
|
|
<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
|
|
<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))' />
|
|
<title>Share an iSCSI HBA among multiple hosted servers</title>
|
|
<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
|
|
<link rel="stylesheet" type="text/css" href="ic.css" />
|
|
</head>
|
|
<body>
|
|
<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
|
|
<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
|
|
|
|
<img src="delta.gif" alt="Start of change" /><img src="delta.gif" alt="Start of change" /><img src="delta.gif" alt="Start of change" />
|
|
<a name="rzahqmanihbashar"></a>
|
|
<h4 id="rzahqmanihbashar">Share an iSCSI HBA among multiple hosted servers</h4>
|
|
<p>A single iSCSI HBA for iSeries™ may be able to handle the workload
|
|
for several servers that do not require high bandwidth for the SCSI and virtual
|
|
Ethernet LAN traffic. For example, you can share an iSCSI HBA for iSeries among several
|
|
development and test servers if their workload is light.</p>
|
|
<p>There are limits to the number of storage and virtual Ethernet paths that
|
|
an iSCSI HBA can support. Each active server storage path will use a file
|
|
server resource in the network server host adapter (NWSH) object that corresponds
|
|
to the iSCSI HBA. Likewise, each active server virtual Ethernet path will
|
|
use a virtual Ethernet resource in the NWSH object. There is a limit to the
|
|
number of file server and virtual Ethernet resources supported by a particular
|
|
NWSH, which limits how many active servers can use the NWSH.</p>
|
|
<p>To see the NWSH file server and virtual Ethernet resource limits using iSeries Navigator, follow these steps:</p>
|
|
<ol type="1">
|
|
<li>Expand <span class="bold">Integrated Server Administration</span>.</li>
|
|
<li>Expand <span class="bold">iSCSI Connections</span>.</li>
|
|
<li>Select <span class="bold">Local Host Adapters</span>.</li>
|
|
<li>Right-click a NWSH from the list available.</li>
|
|
<li>Select <span class="bold">Properties</span>.</li>
|
|
<li>Click on the <span class="bold">Resource Usage</span> tab.</li>
|
|
<li>The table shows the active servers that are currently using the NWSH and
|
|
the file server and virtual Ethernet resources that they are currently using.
|
|
Below the table it shows how many file server and virtual Ethernet resources
|
|
are still available for use by inactive servers and the total number of file
|
|
server and virtual Ethernet resources that the NWSH supports.</li>
|
|
<li>Click <span class="bold">Cancel</span> on the NWSH properties panel to close
|
|
the panel.</li></ol>
|
|
<p>If you want to use a CL command, see the WRKDEVD or DSPDEVD commands.</p>
|
|
<p>There is also a less defined practical limit to the number of servers that
|
|
an iSCSI HBA can support. The practical limit is determined by the available
|
|
iSCSI HBA bandwidth and the workload that is being run through the iSCSI HBA.
|
|
The practical limit will most likely limit how many hosted systems the iSCSI
|
|
HBA can support before the file server and virtual Ethernet resource limits
|
|
described above are reached. The practical limits will depend on your particular
|
|
server configurations and workloads.</p><img src="deltaend.gif" alt="End of change" /><img src="deltaend.gif" alt="End of change" /><img src="deltaend.gif" alt="End of change" />
|
|
<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
|
|
</body>
|
|
</html>
|