2. PERFORMANCE REPORTING ANALYSIS › 2.5 Virtual Storage Management Analysis › 2.5.1 Functional Description

2.5.1 Functional Description

The Virtual Storage Management Analysis inquiries allow you
to track the systemwide utilization of virtual storage,
Common Area virtual storage usage, and virtual storage usage
by workload in MVS/XA.  Any supported CA MICS timespan and
summarization pattern can be implemented.

The System Storage Usage Report and Common Area Storage Usage
Report use data from the MVS Virtual Storage System Usage
File (SCPVSM).  The System Storage Usage Plot obtains data
from the same source.  The Private Storage Usage Report and
Plot use data from the MVS Virtual Storage Private Usage File
(SCPVSU).

You specify the timespan desired during inquiry definition.
The range of data that can be reported from a CA MICS
database depends on the timespans that were defined for
these files and the number of cycles defined in each
timespan.

For the Private Storage Usage Report and Plot to produce
meaningful results, the application to be analyzed must have
been reported upon by RMF.