When you need an overview on all allocated Datasets you have two options:
1. OCS-command SHOW ALLOC
This command displays all VSAM files currently allocated to your SOLVE- or NetMaster-Region.
2. OCS-command $DSCALL OPT=SHOWALLOC
This command displays all allocated files, VSAM and sequential files. The displayed panel "Dataset Services : Allocated Files" allows you to enter line commands for any dataset to display more information, to browse the file or to unallocated the file.