To potentially improve the performance of the COPY utility,
copy partitions or data sets at the same time.
Procedure
To copy partitions or data sets simultaneously:
- If the table space is partitioned, take one of the following
actions:
- Specify
the PARALLEL option in the COPY utility control statement to copy
partitions in the same COPY execution in parallel.
- Copy the partitions independently in separate simultaneous jobs.
This method can reduce the time that it takes to create sequential
image copies of the entire table space.
- If the table space is a nonpartitioned table space that
consists of more than one data set, copy several or all of the data
sets independently in separate jobs.
To do so, run simultaneous
COPY jobs (one job for each data set) and specify SHRLEVEL CHANGE
on each job. However, creating copies simultaneously does not provide
you with a consistent recovery point unless you subsequently run a
QUIESCE for the table space.