Explanation
During the DFSMShsm control data set backup function,
the attempt to back up the data set identified by
dsid is
about to begin.
- dsid specifies either MCDS, BCDS, or OCDS.
- MCDS indicates the attempt to back up the DFSMShsm migration control data
set is about to begin.
- BCDS indicates the attempt to back up the DFSMShsm backup control data
set is about to begin.
- OCDS indicates the attempt to back up the DFSMShsm offline control data
set is about to begin.
The time of day the backup started
is expressed as hh:mm:ss (hours,
minutes, seconds). The current date is expressed
as yy/mm/dd (year,
month, day).
The BACKUP COPY TECHNIQUE is an SMS management
class attribute that specifies whether the concurrent copy function
should be used when backing up the data set.
The
BACKUP COPY TECHNIQUE can be specified as: - STANDARD indicates that concurrent copy should not used to back
up the data set. Normal backup processing is used.
- REQUIRED indicates that either virtual or cache based concurrent
copy is required to backup the data set. If a concurrent copy session
cannot be established, then the data set does not get backed up.
- PREFERRED indicates that either virtual or cache based concurrent
copy is preferred for backing up the data set. If a concurrent copy
session cannot be established, then normal backup processing is used.
- VIRTUALREQUIRED indicates that virtual concurrent copy is required
to back up the data set. If a virtual concurrent copy session cannot
be established, the data set does not get backed up.
- VIRTUALPREFERRED indicates that virtual concurrent copy is preferred
for backing up the data set. If a virtual concurrent copy session
cannot be established, then normal backup processing is used.
- CACHEREQUIRED indicates that cache based concurrent copy is required
to back up the data set. If a cache based concurrent copy session
cannot be established, then the data set does not get backed up.
- CACHEPREFERRED indicates that cache based concurrent copy is preferred
for backing up the data set. If a cache based concurrent copy session
cannot be established, then normal backup processing is used.
UNDEFINED means the CDS is not SMS managed, or the DATAMOVER
is specified as DFSMShsm.
System action
DFSMShsm continues to process.
Programmer response