VMTAPE record in the configuration file of each participating CA VM:Tape system to define the user IDs in the shared environment
SYSNAME record in the configuration file of each participating CA VM:Tape system to accommodate the disk sharing logic
VMTSDF utility program to format the control area on a shared minidisk, specifying the names of the participating CA VM:Tape systems
CA VM:Tape operator command, SDC (shared disk control), to analyze and recover from disk lockouts or to test the proper functioning of the lock mechanism.
