91 lines
6.1 KiB
HTML
91 lines
6.1 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Automatically configure virtual devices" />
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<meta name="abstract" content="You can configure your Telnet server to automatically create virtual devices as needed up to a set maximum." />
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<meta name="description" content="You can configure your Telnet server to automatically create virtual devices as needed up to a set maximum." />
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<meta name="DC.Relation" scheme="URI" content="rzaiwnamdev.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaiwseccontrolaccess.htm" />
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<meta name="DC.Relation" scheme="URI" content="../rzakz/rzakzqautovrt.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzaiwautcfgdev" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Automatically configure virtual devices</title>
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</head>
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<body id="rzaiwautcfgdev"><a name="rzaiwautcfgdev"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Automatically configure virtual devices</h1>
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<div><p>You can configure your Telnet server to automatically create virtual
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devices as needed up to a set maximum.</p>
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<p>You can enable the Telnet server to automatically configure your virtual
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devices and controllers using the QAUTOVRT Devices System Values in iSeries™ Navigator.
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You can specify the number of devices that are automatically started and you
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can specify the maximum number of devices that the iSeries server automatically configures.
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The iSeries server
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configures or creates one device at a time, as needed, up to a specified limit.</p>
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<p>When automatically configuring virtual devices with Telnet, the Telnet
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server does not delete virtual devices and does not delete the devices when
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the session closes. The server does not delete the devices even if the number
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of devices attached to the virtual controllers exceeds the maximum number.
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If the devices already exist on the virtual controller, the Telnet server
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can use them. Telnet server will modify the attributes of an existing device
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to match the client request if that virtual device is requested by name.</p>
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<p>If you have never allowed automatic configuration of virtual devices on
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your server, the Devices System Value Maximum number of devices value is 0.
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A Telnet connection attempt will fail when the number of devices in use exceeds
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the Maximum number of devices. A device in use has the status ACTIVE or SIGNON
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DISPLAY. If you try to sign on, you receive a message (TCP2504) indicating
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that the Telnet client session has ended and the connection is closed. In
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addition, the QTCPIP job in the remote iSeries server sends a message (CPF8940)
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indicating that a virtual device cannot be automatically selected.</p>
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<p>If you change the Maximum number of devices to 10, the next Telnet connection
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attempt causes the Telnet server to create a virtual device. Telnet creates
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this virtual device because the number of virtual devices on the controller
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(0) is less than the number specified in the Maximum number of devices(10).
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Even if you change the specified number to 0 again, the next user attempting
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a Telnet connection succeeds. When a Telnet connection attempt fails because
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the iSeries server
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is not able to create a virtual device, the CPF87D7 message is sent to the
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system operator message queue on the Telnet server.</p>
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<div class="note"><span class="notetitle">Notes:</span> <ol><li>The Telnet server does not automatically delete configured virtual devices
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or named devices, even if the number of devices attached to the virtual controllers
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exceeds the Maximum number of devices.</li>
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<li>The Devices system values specify whether pass-through virtual devices
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and Telnet full screen virtual devices that are attached to the QPACTL<var class="varname">nn</var> controllers
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are automatically configured. This system value does not affect devices attached
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to the QVIRCD<var class="varname">nnnn</var> controllers, because these are not default
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system devices. Typically, QPADEV<var class="varname">nnnn</var> devices are attached
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to QPACTL<var class="varname">nn</var> controllers while named devices, such as NEWYORK001,
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are attached to the QVIRCDnnnn controller.</li>
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</ol>
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</div>
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<p>For instructions to set this value in iSeries Navigator, refer to <a href="rzaiwnamdev.htm">Set the number of virtual devices</a>.</p>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiwnamdev.htm" title="You can read this topic for instructions on configuring the number of virtual devices for the Telnet server and limiting the number of signon attempts allowed.">Set the number of virtual devices</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzaiwseccontrolaccess.htm" title="This topic provides tips for protecting your Telnet server from harm.">Control Telnet access</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="../rzakz/rzakzqautovrt.htm">QAUTOVRT Devices System Values</a></div>
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</div>
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</div>
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</body>
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</html>
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