ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzam4_5.4.0.1/rzam4compbackuprngstartdatetime.htm

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<h1 class="topictitle1">Complete Backup Range — Starting Date and Time</h1>
<div><p>You can specify a starting date and time on the <span class="cmdname">Copy Optical
(CPYOPT)</span> command.</p>
<p>The starting date and time of a Complete Backup Range for an optical backup
volume or directory is the earliest time that is specified on a CPYOPT command
when all eligible files on the volume or directory were successfully copied.</p>
<p>This system uses time to select the files from the primary volume to copy
to the optical backup volume. The system copies any files that are created
or changed on or after this time. First, the system must successfully copy
all eligible files for a directory or volume. Then the system sets the starting
date and time for the corresponding optical backup volume or directory to
the specified time. The definition indicates that this value is the earliest
time that is specified on a CPYOPT command. Consider the following example.</p>
<p>Starting Date and Time — Scenario: A user issues the CPYOPT command for
directory /DIR1 by specifying 1 May 1999 as the starting date. If all eligible
files successfully copy, then the system sets the complete starting date for
the backup directory /DIR1 to 1 May 1999.</p>
<p>Now assume that the user issues the CPYOPT command again for /DIR1. This
time the system sets the starting date to 1 April 1999. This request copies
any files that have changed since the last CPYOPT command. Additionally, it
copies any files that were created between 1 April 1999 and 1 May 1999 that
were not selected on the previous request. If all eligible files again copy
successfully, then the starting date for backup directory /DIR1 changes to
1 April 1999. Future copies specifying earlier starting dates would produce
similar results.</p>
<p>Use *BEGIN and *AVAIL for the starting date and time on the CPYOPT command.
This will copy all the files from a primary directory or volume, regardless
of the create or change time for the file.</p>
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<div class="familylinks">
<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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