Recommendation: Use manual processing with automatic cartridge loaders and volumes with old labels. DFSMSrmm performs manual processing that requires operator intervention when you do not specify any EXEC parameters that select automatic processing. These parameters are described in Initializing and erasing volumes automatically. Specify commands in the SYSIN file or reply to operator messages to when you want operator intervention.

The only required SYSIN command operand is the volume serial number. When you specify the volume serial number, DFSMSrmm gets the rest of the information about the volume from the control data set.

If you supply MEDIANAME, POOL, or RACK operands on the INIT or ERASE SYSIN command that do not match the existing volume entry, DFSMSrmm issues an error message and stops processing the current volume.