66 lines
4.7 KiB
HTML
66 lines
4.7 KiB
HTML
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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="dc.language" scheme="rfc1766" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<meta name="dc.date" scheme="iso8601" content="2005-09-13" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow"/>
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<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))' />
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<title>Basic single server support</title>
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<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
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<link rel="stylesheet" type="text/css" href="ic.css" />
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</head>
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<body>
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<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
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<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
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<img src="delta.gif" alt="Start of change" /><img src="delta.gif" alt="Start of change" />
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<a name="rzahqbasicsingleserversupport"></a>
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<h4 id="rzahqbasicsingleserversupport">Basic single server support</h4>
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<p>To attach or host an xSeries® or IBM® BladeCenter™ server via iSCSI to an iSeries™, hardware
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must be installed in both the iSeries and the hosted system. The hardware
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required at each end is an iSCSI host bus adapter (HBA) or iSCSI adapter.
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These two adapters are connected via an Ethernet switch, using standard Ethernet
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cables. The simplest form of the physical connection between a hosted system
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and an iSeries server is illustrated in <a href="rzahqbasicsingleserversupport.htm#zahqfigiscsiatta">Figure 6</a>.</p>
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<a name="zahqfigiscsiatta"></a>
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<div class="fignone" id="zahqfigiscsiatta"><img src="delta.gif" alt="Start of change" /><span class="figcap">Figure 6. Single iSCSI attached server</span>
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<div class="mmobj">
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<img src="rzahq501.gif" alt="This image shows the network connections between i5/OS and the hosted system." /></div><img src="deltaend.gif" alt="End of change" /></div>
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<p>The xSeries or IBM BladeCenter server known as the hosted system
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has an initiator iSCSI HBA installed. This adapter has an Ethernet network
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interface and it is connected via an Ethernet switch to the target iSCSI HBA
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installed in the iSeries server. The hosted system is a diskless server.
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The virtual disks and virtual removable media devices are hosted or provided
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by the iSCSI HBA for iSeries. The SCSI commands to access these devices are
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packaged in TCP/IP frames and travel from the hosted system to the iSCSI
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HBA for iSeries over the Ethernet network. This mode of communication is known
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as Internet SCSI or iSCSI.</p>
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<p>The iSCSI attached servers are configured in i5/OS™ objects. For more information about these
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objects, see <a href="rzahqsoftconcepts.htm#rzahqsoftconcepts">Software concepts</a>.</p>
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<p>i5/OS can locate and manage remote systems by sending commands to the
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service processor of the remote system over an Ethernet network. IBM Director is
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used for these functions and must be installed and running on all partitions
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that are connected to iSCSI attached host bus adapters (HBAs). For more information,
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see <a href="rzahqdiscoveryandmanagement.htm#rzahqdiscoveryandmanagement">Remote server discovery and management</a>.</p>
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<p>Two distinct networks are illustrated in <a href="rzahqbasicsingleserversupport.htm#zahqfigiscsiatta">Figure 6</a>.
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The iSCSI network uses an isolated switch. The service processor connection
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uses an external network (shared network). There does not have to be two distinct
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networks. For example, the service processor connection could use the same
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isolated switch as the iSCSI network. This is one way to secure the service
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processor connection. However, the i5/OS LAN adapter would not be available for
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other applications on the external network.</p>
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<p>Both types of networks should be secured. For more information about security
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for iSCSI attached servers, see <a href="rzahqsecurity.htm#rzahqsecurity">Security concepts</a>.</p><img src="deltaend.gif" alt="End of change" /><img src="deltaend.gif" alt="End of change" />
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<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
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</body>
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</html>
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