OAM storage management component—wait and loop keywords

Use the information presented below to identify a potential system wait or loop. Then contact the IBM® Support Center for assistance with analyzing the dump.

OSMC processes storage groups individually and sends a message after each storage group has completed processing:

The message CBR9048I is displayed upon successful processing of a storage group.
The message CBR9049I is displayed upon unsuccessful processing of a storage group.

If the system does not issue a message, the system could be waiting or looping.

To diagnose the problem, you must generate a dump of the OAM address space by issuing the DUMP command. The following entries should be produced in the dump:

SDATA=(TRT,LPA,CSA,PSA,GRSQ,SUM,SQA,ALLNUC,LSQA,RGN,SWA)

Refer to z/OS MVS System Commands for information on how to generate a dump.

After producing a dump, use IEBGENER to copy the SYS1.LOGREC data set to a standard label tape. This data set contains the event history leading up to the wait problem.

Recommendation: If you have the DFSORT product installed, you should be using ICEGENER as an alternative to IEBGENER when making an unedited copy of a data set or member. It might already be installed in your system under the name IEBGENER. It generally provides better performance.