You can use the REPORT command to obtain statistics about DFSMShsm’s
operations. You can report the statistics on either a daily basis
for all volumes or a volume basis for specific volumes. You can restrict
the scope and format of the statistics reported to the backup, deletion
of data sets, migration, recall, recovery, recycle, and spill functions.
You can restrict the beginning date of the statistics or the dates
between which the statistics are reported. You can also restrict the
report to a summary of the statistics.
To report daily statistics about data sets that are backed up and
to send the report to a DASD data set, issue the following command:
REPORT DAILY FUNCTION(BACKUP) OUTDATASET(dsname)
To obtain daily statistics about all functions, issue the following
command:
REPORT DAILY FUNCTION
The report is sent to the SYSOUT class specified with the SETSYS
command.
To obtain volume statistics for all volumes and to send the report
to SYSOUT class A, issue the following command. This report also includes
the total number of times that a fast replication backup was successfully
created for a volume and the number of failed attempts for the volume.
Recover statistics that are associated with the fast replication operation
are also reported.
REPORT VOLUME FUNCTION SYSOUT(A)
To obtain volume statistics for one volume about migration between
two dates and delete the statistics records after the report is printed,
issue the following command:
REPORT VOLUME(volser FUNCTION(MIGRATION) -
FROMDATE(date) TODATE(date) DELETE
After you have formatted a report, you can free the space allocated
for the statistics that made up the report. To clean up unneeded report
statistics, do one of the following:
- Issue the DELETE parameter of the REPORT command. DFSMShsm deletes
the statistics records (used as input for the report) after the REPORT
command finishes its processing. For example, if you allocate one
additional cylinder for the accumulation of statistics and control
records for one week, issue the DELETE parameter of the REPORT command
once a week.
- Specify how often DFSMShsm deletes MCDS data set records and statistics
records with the MIGRATIONCLEANUPDAYS(recalldays statdays)
parameter of the SETSYS command. The cleanup of these records occurs
as a part of secondary space management.