DFSMShsm recalls a sequential extended-format data set (indicated
in the MCD record) using DFSMSdss as the data mover.
DFSMSdss recalls a sequential extended-format data set in the following
ways:
- A sequential extended-format data set that was multiple-stripe
when it was migrated could be recalled as a multiple-stripe or single-stripe
sequential extended-format data set, depending on the storage class
SUSTAINED DATA RATE value and the availability of the required volumes.
- Conversely, a sequential extended-format data set that was single-stripe
when it was migrated could be recalled as a multiple-stripe or single-stripe
sequential extended-format data set, depending on the storage class
SUSTAINED DATA RATE value and the availability of the required volumes.
- A data set that was not sequential extended-format when it was
migrated is always recalled as a data set that is not sequential extended-format.
DFSMShsm does not convert a data set that is not sequential extended-format
to a sequential extended-format data set through recall processing.
- A sequential extended-format data set can be recalled as a data
set that is not sequential extended-format on a non-SMS-managed volume
by specifying FORCENONSMS on the RECALL command.
- A data set that was sequential extended-format when migrated is
recalled as a non sequential extended-format but still SMS-managed
data set if no SMS volumes supporting sequential extended-format data
sets are available.
Recall fails if the ACS filter routines are modified to direct
a data set that was sequential extended-format when it was migrated
to a non-SMS-managed volume.
Note: If reblocking is required
for a sequential extended-format data set, the reblocking is performed.