1.3 Requirements

 The CA MICS Space Collector Option runs in all of the
 following operating system environments using these
 distributed load modules:

 o OS/390 (OS/390 through V2R10)
 o z/OS (z/OS through V1R13)

 The CA MICS Space Collector Option must run from an
 APF-authorized library to open and read ICF catalogs, enqueue
 VTOCs, optionally write records to SMF, and run as
 nonswappable. Because it runs multiple subtasks for
 efficiency, it may require a larger region size than your
 standard default. The number of subtasks can be
 user-controlled to allow flexibility in environments that are
 constrained in virtual storage.

 The CA MICS Space Collector Option typically requires less
 than one MB of memory below the 16 MB line. Therefore, we
 recommend running it with the MINIMUM value of REGION=1M or
 REGION=1024K.

 With large DASD configurations, you will want to run with
 many subtasks (for example, VTOCSUBT=20, VSAMSUBT=10).