86 lines
5.5 KiB
HTML
86 lines
5.5 KiB
HTML
<?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 http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Load and unload CD-ROM and DVD media" />
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<meta name="abstract" content="Loading a CD-ROM or DVD media into a drive causes the system to read the media to retrieve the volume identifier." />
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<meta name="description" content="Loading a CD-ROM or DVD media into a drive causes the system to read the media to retrieve the volume identifier." />
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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>Load and unload CD-ROM and DVD media</title>
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</head>
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<body id="rzam4loadunloadcddvd"><a name="rzam4loadunloadcddvd"><!-- --></a>
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<img src="./delta.gif" alt="Start of change" /><!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Load and unload CD-ROM and DVD media</h1>
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<div><p>Loading a CD-ROM or DVD media into a drive causes the system to
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read the media to retrieve the volume identifier.</p>
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<p>The system stores this volume identifier in an optical index database file
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to expedite future access to the media. After the volume identifier is in
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the optical index, you can access the media through save and restore options,
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as well as the application programming interfaces. Unloading the media from
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the drive removes the volume identifier from the optical index. The system
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adds the volume identifier to the optical index database in one of two ways:</p>
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<ul><li>When the CD-ROM or DVD is loaded into a varied-on device, aCD-ROM or DVD
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can be loaded into a varied-off device. However, the optical index is not
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updated until you vary on the device description.</li>
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<li>When the user varies on a CD-ROM or DVD device description with media
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in it.</li>
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</ul>
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<p>Additional processing could take several seconds after the tray slides
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in before the CD-ROM or DVD is usable. This is true for varying on as well.
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Even if the vary-on operation completes successfully, the CD-ROM or DVD is
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not usable until the system reads and stores the media information in the
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optical index. This may take several seconds after the vary-on operation is
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completed.</p>
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<div class="p">When the user successfully loads a CD-ROM or DVD into a drive, the system
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sends the following message to the QSYSOPR message queue: <pre>Volume VOLID01 added to optical device.</pre>
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</div>
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<div class="p">When a CD-ROM or DVD is successfully removed from a drive,
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the system sends the following message to the QSYSOPR message queue: <pre>Volume VOLID01 removed from optical device.</pre>
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</div>
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<p>You can use the Work with Optical Volumes (WRKOPTVOL) command to verify
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the successful adding or removing of the CD-ROM or DVD.</p>
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<p>You can also use the Display Optical (DSPOPT) command to display optical
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volume information.</p>
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<p>Occasionally media may fail to load successfully into the drive. Some of
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the possible causes for an unsuccessful load are listed below.</p>
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<ul><li>Media or drive error occured. </li>
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<li>The media format is not supported (digital audio CD-ROM).</li>
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<li>The system encountered a duplicate volume identifier.</li>
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</ul>
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<div class="p"> Depending on the error, the tray may or may not eject if a CD-ROM or DVD
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fails to load. A failure to load the CD-ROM or DVD might not be obvious. Your
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first indication may be that you received one of the following messages when
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trying to access the CD-ROM:<pre>Optical volume format not recognized.</pre>
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<pre>Optical volume not found.</pre>
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</div>
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<p> If an error does occur when loading media or varying on the drive, the
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system signals an error message to the QSYSOPR message queue. This message
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describes the reason for the failure.</p>
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<p> The processing for the load, unload, and vary-on operations runs in job
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QJOBSCD. If errors occur during these operations, view the job log of QJOBSCD
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to see the detailed messages.</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="rzam4useoptdev.htm" title="You can display the primary menu for optical support by entering GO OPTICAL on the i5/OS command line. System administrators and programmers can access most optical commands through this menu. It is also convenient to enter many of the optical commands directly on the command line.">Use optical devices</a></div>
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</div>
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</div>
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<img src="./deltaend.gif" alt="End of change" /></body>
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</html> |