52 lines
3.2 KiB
HTML
52 lines
3.2 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="2005-10-17" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 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>How OptiConnect works</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="howwrk"></a>
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<h2 id="howwrk">How OptiConnect works</h2>
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<p>The OptiConnect network connects multiple unique servers or partitions,
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using one of the three high-speed internal bus technologies available on the iSeries™ servers. The mechanism used by OptiConnect software to access database
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files on another server is modeled after the mechanism used by Distributed
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Data Management (DDM). DDM uses a DDM file and advanced program-to-program
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communications (APPC) to redirect file access operations to another server.
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Similarly, OptiConnect uses DDM files and a special transport service to redirect
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file access operations to another server in an OptiConnect network. Thus,
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OptiConnect can achieve transport efficiencies that are not possible with
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a more general purpose, wide-area communications protocol.</p>
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<p>Two things differentiate OptiConnect from traditional communications based
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distributed operations. The first is a high-speed connection mechanism that
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takes advantage of the I/O bus or memory bus structure to connect multiple
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servers or partitions. The second is a device driver that is embedded in the
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operating system. This device driver streamlines the application access to
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data on a remote server. Once OptiConnect establishes server connections,
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much of the APPC protocol stack is bypassed. The OptiConnect fast-path connection
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for database transactions provides DDM access to databases anywhere in the
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OptiConnect network at a fraction of the standard communications code path.
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Data warehouse, Distributed Relational
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Database Architecture™ (DRDA®), and data propagation functions (such
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as journaling) can use this technology.</p>
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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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