62 lines
3.8 KiB
HTML
62 lines
3.8 KiB
HTML
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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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<meta name="DC.Title" content="CPYOPT requirements to volume type *BACKUP" />
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<meta name="abstract" content="When the target volume is type *BACKUP, the Copy Optical (CPYOPT) command has the following requirements:" />
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<meta name="description" content="When the target volume is type *BACKUP, the Copy Optical (CPYOPT) command has the following requirements:" />
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<title>CPYOPT requirements to volume type *BACKUP</title>
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</head>
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<body id="rzam4cpyoptreqsbkup"><a name="rzam4cpyoptreqsbkup"><!-- --></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">CPYOPT requirements to volume type *BACKUP</h1>
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<div><p>When the target volume is type *BACKUP, the Copy Optical (CPYOPT)
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command has the following requirements:</p>
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<ul><li>The source volume must be type *PRIMARY. 94 Optical Support V5R3</li>
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<li>Only the CPYOPT and CVTOPTBKU commands can write to the target *BACKUP
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volume. APIs, utilities, and user programs cannot write to an optical *BACKUP
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volume.</li>
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<li>An optical *BACKUP volume can contain information for only one optical
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*PRIMARY volume. This prevents two primary volumes from sharing the same optical
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backup volume.</li>
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<li>You cannot delete directories or files from an optical *BACKUP volume.
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This ensures data integrity of the optical backup volume.</li>
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<li>The system maintains the file create date and time, and change date and
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time for the *PRIMARY volume on the optical *BACKUP volume.</li>
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<li>A user application cannot directly use a file or directory on a *BACKUP
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volume. First, you must copy the file or directory to an optical *PRIMARY
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volume by using CPYOPT.</li>
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<li>If the optical *PRIMARY volume is damaged or lost, you can convert the
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optical *BACKUP volume to an optical *PRIMARY volume. You can do this by using
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the Convert Optical Backup (CVTOPTBKU) CL command.</li>
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<li>To maintain control information about the status of backup requests, optical
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*BACKUP volumes require additional media usage. Because of this, a *PRIMARY
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volume that is 100% used may not fit on an optical *BACKUP volume.</li>
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<li>The system always initializes *BACKUP volumes with a 99% volume threshold.</li>
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</ul>
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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="rzam4usecpyopbckupvol.htm" title="You can use the Copy Optical (CPYOPT) command to do a complete or partial copy of your volume.">Use CPYOPT to backup a volume</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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