10. MODIFICATION › 10.1 Parameter Modification › 10.1.5 Alter the Active Timespans for a File

10.1.5 Alter the Active Timespans for a File

You can alter the active timespans and the status of the
audit and history collection for a file by modifying the FILE
statement for that file.  You may also want to update the
DBMODEL member of prefix.MICS.PARMS for an estimate of new
space requirements.

See Section 4.2.4.2.1 of the System Modification Guide for
more information about the FILE statement and see Section
7.3.4 of this guide for information about DBMODEL.

After the change has been made, you must run cccCGEN and
CYCLEGEN in each unit that has the CA MICS Space Analyzer
installed.  If the status of the audit and history collection
for a file has been changed, then the WEEKLY and MONTHLY JCL
will have to be regenerated.

Example 1:  Making VCA_VS Inactive at DAYS and Above

Chapter 5 describes the VCA_VS file in detail.  After reading
the sections in Chapter 5 that describe VCA_VS and VCADAA,
you will notice opportunities for consolidation.

If your MVS systems are 100% converted to ICF catalogs, then
the VCADAA file can represent space allocated (DAASPACA,
DAAALLSP, DAAKBYTA) information in a way perfectly suitable
for accounting and capacity planning.

If you are willing to forego the historical data related to
space used (DAASPACU, DAAUSESP, DAAKBYTU) kept in summary
levels of the VCA_VS file, then you could change the file
statement for VCA_VS to turn off the files at the DAYS level
and higher.

a. Update sharedprefix.MICS.GENLIB(VCAGENIN):

    Change the FILE statement for VCA_VS from:

      FILE _VSDAA 50 1 Y E N Y N Y N Y VSAM.....

      to:

      FILE _VSDAA 50 1 Y N N N N Y N N VSAM.....

   For more information regarding the values in the FILE
   statement above, refer to Section 6.2.2 of the System
   Modification Guide (SMG).

b. Submit VCACGEN and ensure it runs correctly.

NOTE:  By inactivating the VCA_VS file at DAYS and above,
       some report paths in CA MICS StorageMate may be
       affected by the unavailability of data to produce a
       report.  Check with all users of the data before
       performing this space-saving action.

Example 2: Making the VCADCS File Inactive

Chapter 5 describes how this file is already inactive at
DETAIL.  If you are not running DFSMS and using DATACLAS, or
even if you are but are not interested in historical views
of DATACLAS usage, then you can save space by making the
VCADCS inactive at DAYS (this will eliminate it altogether).

Simply change the positional indicator at DAYS from E to
N on the FILE DCS Statement and submit VCACGEN.