The FRBACKUP command creates a fast replication backup version
for each volume in every storage group defined within a copy pool.
You can use the following FRBACKUP command to initiate a fast replication
backup for a copy pool:
FRBACKUP COPYPOOL(cpname) EXECUTE TOKEN(token)
The fast replication backup function is not available as part of
automatic backup or dump. You can invoke the FRBACKUP command from
a system console, with a TSO command (HSENDCMD), with a batch job,
or by using the ARCHSEND macro interface. DFSMShsm invokes the DFSMSdss COPY
FULL function to create a fast replication backup for each volume
in the specified copy pool.
The FRBACKUP COPYPOOL command is successful only after DFSMSdss has
successfully established a fast replication relationship for each
source volume. If one of the volumes fails, the entire backup version
is failed with the following results:
- DFSMShsm continues to process volumes to determine if any remaining
volumes will also encounter an error.
- For each volume in error, the target volume is disassociated from
the source volume. If there is a problem with the target volume, then
it should be removed from the copy pool backup storage group. Otherwise,
it may be re-selected during the next FRBACKUP command.
- FlashCopy® relationships
that are successfully established are withdrawn after all volumes
are processed.
- The backup version is marked as invalid after all volumes are
processed.
DFSMShsm skips all volumes whose SMS status has not been defined
to the system. DFSMShsm fails volumes for which it cannot obtain a
UCB, such as a volume that is varied offline.
You can use the
FRBACKUP to PPRC Primary Volumes
allowed field in the SMS copy pool definition panel to indicate
whether a Metro Mirror primary volume is allowed to become a target
of a FlashCopy operation,
and whether a preserve mirror operation is required, preferred, or
not desired when the target volume is a Metro Mirror primary volume
during backup. For more information about the SMS copy pool settings
for the
FRBACKUP PPRC Primary Volumes allowed field
and the ALLOWPPRCP keyword, see: