103 lines
6.5 KiB
HTML
103 lines
6.5 KiB
HTML
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<meta name="DC.Title" content="Recovery details" />
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<meta name="abstract" content="These are some details you should refer to concerning the console recovery action." />
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<title>Recovery details</title>
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</head>
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<body id="recoverydetails"><a name="recoverydetails"><!-- --></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">Recovery details</h1>
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<div><p>These are some details you should refer to concerning the console
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recovery action. </p>
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<div class="section"><ul><li>The recovery of the console using a device with the same console connectivity
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is directly tied to the take over option. If you do not want take over capability
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but do want recovery from loss of the console, you must still enable the take
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over option.</li>
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<li>Console recovery utilizes the take over function. Recovery can be from
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the same device or another device of the same connectivity. For example,
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if you are using Operations Console LAN and have multiple PCs set up to be
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the console and the existing console fails you can use the take over function
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from the same PC, after correcting the reason for the failure, or from another
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PC. Regardless of what the former console was doing, the new console will
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be in the same job, at the same step, as the original console would have been.
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The job continues even though the console was not operational. Using a directly
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attached console to recover a loss of a LAN-connected console doesn't fit
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this scenario</li>
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<li>The recoverability of the console using a different console connectivity
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provides additional options for the user. If you have a backup console plan
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that involves the need for a change in the console mode, consider the following: <ul><li>It is recommended that for ease of adapting recovery that you place all
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console supporting adapters for use by the same IOP. This reduces the number
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of steps necessary to accomplish a recovery. </li>
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<li>The console mode change can be immediate depending on the method used
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to make the change. Examples would be: <ul><li>Using DST or SST to change the console mode would allow the console to
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change only at the next IPL. Following this action with a force DST (function
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21) using the control panel or LPAR menu may not always work either.</li>
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<li>Changing tags in the LPAR environment will also require an IPL to cause
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a change of the console.</li>
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<li>However, using the console service functions (65+21), forces the system
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to do this search and activates the appropriate hardware and tasks and is
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immediate.</li>
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</ul>
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</li>
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<li>Supporting hardware for each console type you want to use for recovery
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must be available at the time of recovery. For example, if you want a local
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console directly attached to be able to recover a local console on a network,
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both adapter cards must be located in their respective locations or be properly
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tagged for logical partitions. For this to be completed the user would also
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have to change the console mode, either using an available menu or using the
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console service functions (65+21). <p>In order to accomplish a recovery using
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a different console mode you must set the new console mode <strong>before</strong> attempting
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the take over. This means that either the supporting hardware must already
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be available, including any logical partition tagging, or you have to move
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supporting hardware, physically or logically, before attempting the recovery.
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Then, you will have to use one of the methods to change the console mode
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to the desired setting. You can use an existing workstation and SST, if available,
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the native macro, or the console service functions (65+21).</p>
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<p>For additional
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information on console service functions, see the section: <a href="rzajrfunctions6521.htm">Using the console service functions (65+21)</a>.</p>
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</li>
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<li><img src="./delta.gif" alt="Start of change" />In V5R4, a D-mode IPL the take over function, one console device
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taking over for another, is now supported. <p>If you change the console mode
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value during a D-mode IPL, for example using 65+21, you should be able to
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connect another device as long as the new console mode has supporting hardware
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and a device.</p>
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<img src="./deltaend.gif" alt="End of change" /></li>
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</ul>
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</li>
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</ul>
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</div>
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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="rzajrconsoletakeoverandrecover.htm" title="Use these functions to take control of another console device.">Take over or recover an Operations Console connection</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="rzajrtakeoverdetails.htm" title="These are some facts you should remember concerning the console take over function.">Take over details</a></div>
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<div><a href="rzajrfunctions6521.htm" title="The emergency console recovery functions and their uses">Using the console service functions (65+21)</a></div>
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</div>
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</div>
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</body>
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</html> |