Running LISTDATA

The IDCAMS LISTDATA command makes use of the IDCSS01 API which is the same service used by OMEGAMON® for Storage to acquire statistics on cache controllers. If your cache status shows TIMEOUT, for instance, it may indicate a problem in OMEGAMON or it may be that there is a problem getting cache information from the controller.

A good way to make this determination is to run JCL similar to the following:

//STEP1 EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=*
//STATREPT DD SYSOUT=*
//SYSIN DD *
 LISTDATA COUNTS UNIT(3390) VOLUME(vvvvvv) ALL
/*

Where vvvvvv = is the volser of a volume on the cache controller in question. Run this job when the problem determination chart calls for it and submit the entire job log to IBM® support with your other documentation.