You can use the DISPLAY SMS operator command to determine the status of SMS, storage groups, DASD volumes, tape volumes, tape libraries, OAM, OSMC, optical libraries, optical volumes and optical drives.
You can also enter the LISTSYS and LISTVOL line operators on the ISMF Storage Group List panels to get information about the currently active configuration, storage groups and volumes.
See z/OS DFSMS OAM Planning, Installation, and Storage Administration Guide for Object Support and z/OS DFSMS OAM Planning, Installation, and Storage Administration Guide for Tape Libraries for specific information on using the OAM storage management component commands.