About this task
If a partitioned data set runs out of space or if you make
multiple changes to a partitioned data set or its members, you can
compress it to reduce the amount of space it uses. Rational Developer
for System z supports two compression actions:
- Compress compresses the data set.
- Compress with Backup creates a backup copy
of the data set before compressing it. If the compression action is
successful, the backup copy is deleted. If the compression action
fails, you can use the backup copy to restore the data set.
The
Compress and
Compress with
Backup actions are valid for partitioned data sets only.
They are not available for PDSE (Library) or sequential data sets.