9. PROCESSING › 9.2 Daily Processing Flow for VCA (DAY090) › 9.2.4 Phase 3 - Match VOA to Catalog

9.2.4 Phase 3 - Match VOA to Catalog

The work files containing VSAM, VSAM extent and Base Catalog
data are brought together in this phase along with the Volume
Allocation File (VOA).

The primary purpose of this phase is to match a WORK.VCAVOA
observation with the intermediate WORK files involved in
building VCA_VS data. If there is not an observation from the
WORK.VCAVOA file that matches on VOLSER with these other
files, then an anomaly exists, most likely traceable to data
collection time.

Refer to Appendix A for the explanation of messages issued
in Phase 3 processing.

The intent behind this check and the reporting to MICSLOG is
that failure to match up on VOLSER indicates the possibility
of data logged to SMF interrupted by a job or system failure
but followed later by a successful rerun (or "restart") of
the collector. Hence, the DAY090 processor discards these
records without a matching VOA observation under the premise
that the collection was incomplete and a subsequent new
inventory is presented to DAY090 in this same run or even the
next day.

A secondary purpose of this phase is to replicate the storage
group name for the matching VOLSER to all output observations
destined for the VCA_VS file.