9.1 Processing Overview


The CA MICS Space Analyzer processes data captured by the CA
MICS Space Collector (VCC). VCC obtains the data by
sequentially reading the VTOC (volume table of contents) from
DASD volumes and by sequentially reading the system catalog
structures (both the BCS and the VVDS).  VCC can also obtain
the available data from the DFHSM Migration and Backup
Control Data Sets (MCDS and BCDS, respectively) by using the
ARCUTIL collection facility.

Because of the probability for a large amount of data from
the aforementioned sources, support for the Space Analyzer
has been implemented by means of two separate steps of the CA
MICS DAILY job and three separate information areas. The
DAY090 step processes information into the VCA Information
Area, and the DAY095 step processes information into the HSM
and HSB Information Areas.  This allows you to overlap
processing by defining different unit databases for the VCA,
HSM, and HSB information areas.

The major concepts and processes involved in collecting the
input SMF data via VCC and updating the CA MICS database are
described in the following sections:

    1 - Relationship to VCC SMF Record Production
    2 - Updating the VCA Information Area
    3 - Updating the HSM and HSB Information Areas