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0:33554432 [ PAGE[S] ]
specifies the extent size in pages (2048-byte units). The minimum extent size is one page,
so specifying 0 pages allocates one page (2048 bytes). The PAGE is the default unit of
measurement.
0:68719476735 BYTE[S]
specifies the extent size in bytes. BACKUP rounds up to the next full page. For example, if
you specify 2047 bytes, BACKUP allocates one page; for 2049, it allocates two pages,
and so on.
0:68719476735 REC[S]
specifies the extent size based on the current settings for record length, data-block length,
index-block length, key-field lengths, and compression settings. BACKUP rounds up to the
next full page.
CAUTION:
The PART option affects all partitioned files in the
backup-files
. There might be
more than one partition with the specified
sec-partition-num
, so use the PART option carefully
if you back up more than one partitioned file.
Guidelines
•
When you specify the PART option, the original name of the partition indicated by
sec-partition-num
is replaced by the new partition name you specify. The
sec-partition-num
must already exist in the source file.
•
You can use the PART option to specify the destination partition extent sizes when converting
files from one disk-process type to another.
•
You cannot specify extent sizes with the PART option if your BACKUP command also contains
the PARTONLY ON option.
•
If you include the PART and PARTONLY ON options, BACKUP changes the name of the
secondary partition in the file label of the primary partition. If you include the PART option
without PARTONLY ON, BACKUP changes both the secondary-partition name in the
primary-partition file label and the actual file name of the secondary partition.
•
You cannot use wild-card characters with this option.
Example
To back up all partitions of the file $PUBS.BOOKS.SECT1:
1> BACKUP $TAPE, $PUBS.BOOKS.SECT1, PART (2, $SAVE)
When this file is restored, partition 2 is restored to the volume $SAVE instead of the volume on
which it currently resides.
PARTIAL
The PARTIAL option directs BACKUP to back up only the
backup-files
that have been modified
since
partial-dump-date
. This option applies only to Enscribe files. All SQL objects in the
backup-files
are backed up even if they have not been modified since the
partial-dump-date
. All file labels in the
backup-files
are also backed up when you use
the PARTIAL option.
PARTIAL partial-dump-date
partial-dump-date
is either one of:
{ day month } year , hour:minute
{ month day }
BACKUP Options
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