Data collection

The collection of pertinent system data allows storage administrators and capacity planners to effectively and efficiently plan for and manage their systems. ARCUTIL, the DFSMShsm data collection interface, captures a snapshot copy of DFSMShsm-specific information in a physical sequential data set. The name of the physical sequential data set is the collection data set. The collection data set includes the following DFSMShsm-specific records:

Migrated data set information record
Backup version information record
Tape capacity planning record
DASD capacity planning record

Note: If you use the IDCAMS DCOLLECT command to invoke ARCUTIL, the collection data set can contain other records as well, depending on the parameters specified for DCOLLECT.

z/OS DFSMS Access Method Services Commands gives a description of the fields within these four (and other) records, and Invoking the DFSMShsm data collection interface discusses registers and parameters used with this interface. By using your own program to select the fields you want, you can generate any kind of report in any format, or you can use a preprogrammed report generator (for example, NaviQuest) for your system reports.