58 lines
3.4 KiB
HTML
58 lines
3.4 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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<meta name="dc.date" scheme="iso8601" content="2005-09-06" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<title>LAN line speed considerations for IOPs</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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<a name="rzajtper-lanspdfacts"></a>
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<h4 id="rzajtper-lanspdfacts">LAN line speed considerations for IOPs</h4>
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<p>When configuring an iSeries™ server with communications lines and local area
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networks (LANs), you should not overload an input/output processor (IOP) to
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prevent possible system performance bottlenecks.</p>
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<p>The following tips and information can help you to understand the line
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speed considerations for IOPs.</p>
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<ul>
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<li>For the best performance use a 2843 IOP with one of the following IOAs:
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<ul>
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<li>Token Ring: 2744 100/16/4 Mbps Token Ring card</li>
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<li>10/100 Ethernet: 2838 IOA card</li>
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<li>Gigabit Ethernet: 2743 or 5700 IOA for fiber optic connections or the
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2760 or the 5701 IOA for UTP connections to the network</li></ul></li>
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<li>Check that you do not have the LAN IOA running under an IOP that is also
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running a DASD IOA. The DASD IOA causes slower performance on the LAN IOA
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and you cannot reset the LAN adapter if there is a problem with it.</li>
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<li>When analyzing communications performance on a LAN line, you should be
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aware that resources other than the IOP use can become the bottleneck.</li>
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<li>You should have the highest capacity IOP available for file serving. You
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should have the highest capacity IOP available for environments that use many
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communications input and output operations for each transaction. The highest
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capacity IOP also minimizes the overall response time.</li></ul>
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<p>See the following references for more detail:</p>
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<ul>
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<li> For more information about iSeries server communications, see the <a href="../books/c4154010.pdf" target="_blank">Communications Configuration</a> book.
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<img src="wbpdf.gif" alt="Link to PDF" /></li>
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<li>For more information on IOP performance, see the <a href="../books/sc415340.pdf" target="_blank">Performance Tools for iSeries</a> book.
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<img src="wbpdf.gif" alt="Link to PDF" /></li></ul>
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</body>
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