EDG3303I

Explanation
You attempted to either change the external volume
name (the rack number) for a volume that has a home location name
that is a system-managed tape library, or set a system-managed tape
library home location for a volume whose serial number does not match
the rack number. The volume could at some time move to a system-managed
tape library. The system-managed tape library does not support volumes
with different internal and external volume serial numbers.

System action
The subcommand fails.

Operator response
None.

Programmer response
To change the rack number, you will first
have to change the home location name. Use the RMM CHANGEVOLUME subcommand
with the HOME(SHELF) operand. Once you have changed the external volume
serial number the volume will no longer be accepted in a system-managed
tape library as the internal and external volume serial numbers must
be the same.

Source
DFSMSrmm

Module
EDGMTSO

Routing code
11

Descriptor code
7