Storage manager data records

Use this topic as a reference for storage manager data records.

The format of the storage manager statistics record is described in assembler macro thlqual.SCSQMACS(CSQDQSST).

The data contains information about the number of fixed and variable storage pools that the queue manager has allocated, expanded, contracted, and deleted during the statistics interval, plus the number of GETMAIN, FREEMAIN, and STORAGE requests to z/OS, including a count of those requests that were unsuccessful. Additional information includes a count of the number of times the short-on-storage condition was detected and a count of the number of abends that occurred as a result of that condition.

Additional data about storage usage in the queue manager is produced by class 2 and class 3 statistics trace. While we can view this information, some of it is intended only for IBM use.

• The format of the storage manager pool header statistics record, which is present in subtype 5 records, is described in assembler macro thlqual.SCSQMACS(CSQDQSPH).
• The format of the storage manager getmain statistics record, which is present in subtype 6 records, is described in assembler macro thlqual.SCSQMACS(CSQDQSGM).
• The format of the storage manager region summary record, which is present in subtype 7 records, is described in assembler macro thlqual.SCSQMACS(CSQDQSRS).

Parent topic: Interpreting IBM MQ for z/OS performance statistics