Points to be considered when enabling forward recovery
logging for a VSAM data set that is also defined to CICS®.
- If the LOG(ALL) parameter is specified in the catalog entry of
a VSAM sphere, CICS forward recovery logging writes to the
forward recovery log stream specified in the LOGSTREAMID parameter.
Implementing CICS VR forward recovery logging for this same
VSAM data set causes CICS and CICS VR
forward recovery logging to write to the same forward recovery log
stream, which in most cases is acceptable.
- If the LOG(ALL) parameter is not specified in the catalog entry
of a VSAM sphere, CICS forward recovery logging writes
to the forward recovery log stream specified in the CICS resource
definition. Implementing CICS VR forward recovery logging
for this same VSAM data set might cause CICS and CICS VR
forward recovery logging to write to different forward recovery log
streams, if the log stream specified in the LOGSTREAMID parameter
is different from the log stream specified in the CICS resource definition. For recovery purposes, you might want to consider specifying
the LOG(ALL) parameter for the VSAM data set to have CICS and CICS VR
forward recovery logging write to the same forward recovery log stream.