65 lines
4.2 KiB
HTML
65 lines
4.2 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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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Complete Backup Range — Starting Date and Time" />
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<meta name="abstract" content="You can specify a starting date and time on the Copy Optical (CPYOPT) command." />
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<meta name="description" content="You can specify a starting date and time on the Copy Optical (CPYOPT) command." />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<title>Complete Backup Range — Starting Date and Time</title>
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</head>
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<body id="rzam4compbackuprngstartdatetime"><a name="rzam4compbackuprngstartdatetime"><!-- --></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">Complete Backup Range — Starting Date and Time</h1>
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<div><p>You can specify a starting date and time on the <span class="cmdname">Copy Optical
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(CPYOPT)</span> command.</p>
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<p>The starting date and time of a Complete Backup Range for an optical backup
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volume or directory is the earliest time that is specified on a CPYOPT command
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when all eligible files on the volume or directory were successfully copied.</p>
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<p>This system uses time to select the files from the primary volume to copy
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to the optical backup volume. The system copies any files that are created
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or changed on or after this time. First, the system must successfully copy
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all eligible files for a directory or volume. Then the system sets the starting
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date and time for the corresponding optical backup volume or directory to
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the specified time. The definition indicates that this value is the earliest
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time that is specified on a CPYOPT command. Consider the following example.</p>
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<p>Starting Date and Time — Scenario: A user issues the CPYOPT command for
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directory /DIR1 by specifying 1 May 1999 as the starting date. If all eligible
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files successfully copy, then the system sets the complete starting date for
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the backup directory /DIR1 to 1 May 1999.</p>
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<p>Now assume that the user issues the CPYOPT command again for /DIR1. This
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time the system sets the starting date to 1 April 1999. This request copies
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any files that have changed since the last CPYOPT command. Additionally, it
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copies any files that were created between 1 April 1999 and 1 May 1999 that
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were not selected on the previous request. If all eligible files again copy
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successfully, then the starting date for backup directory /DIR1 changes to
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1 April 1999. Future copies specifying earlier starting dates would produce
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similar results.</p>
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<p>Use *BEGIN and *AVAIL for the starting date and time on the CPYOPT command.
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This will copy all the files from a primary directory or volume, regardless
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of the create or change time for the file.</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="rzam4volumetypebackup.htm" title="This section discusses the *BACKUP volume type and the unique backup process that are associated with a *BACKUP volume.">Volume type *BACKUP</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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