The file attributes can be divided into two groups:
Protection attributes
passwords
standard access control with USER-ACCESS and ACCESS
GUARDS, BASIC-ACL
These protection attributes are not specific to an SF or SM pubset. They are described in the “ARCHIVE” manual [2].
Assignment attributes
STORAGE-CLASS
AVAILABILITY
WORKFILE
IOPERF
IOUSAGE
BLOCK-CONTROL-INFO
These attributes have a special use in an SM pubset. The table below shows how the attributes are processed in the case of a RESTORE / IMPORT. If a file that was backed up by an SM pubset is restored to an SF pubset, these attributes are reset.
Attribute
Recover
Restore without changing environment
Restore and change environment
STORAGE-CLASS
from disk
from tape
reset to *NONE
AVAILABILITY
from disk
from tape
from tape
WORKFILE
from disk
from tape
from tape
IOPERF
from disk
from tape
from tape
IOUSAGE
from disk
from tape
from tape
Unlike SF pubsets where the complete pubset has either key format or nonkey format, an SM pubset can contain volume sets with key disks and volume sets with nonkey disks. That is why, in an environment with SM pubsets, there is no automatic conversion from key format to nonkey format. A file is restored/recalled with the same BLKCTRL and PAMKEY values as for the backup.
A file is restored to the best possible volume set in terms of its assignment attributes and user standards, but with the following exceptions.
A file with the attribute S0-MIGRATION-FORBIDDEN is always restored/recalled to the volume set where it was originally located.
A volume set was specified in the RESTORE/RECALL statement (this does not apply to a file with the attribute S0-MIGRATION-FORBIDDEN).
If a file cannot be assigned because the specified volume set does not exist, it is restored/ recalled to the best possible volume set (this also applies to a file with the attribute S0-MIGRATION-FORBIDDEN).