EDG6639E

Explanation
An unsupported character was found in the volume
serial number. The valid character set differs for SL and AL labels.

System action
The initialize or erase request fails, and processing
continues with the next request.

Operator response
None.

Source
DFSMSrmm

Module
EDGINERS

Storage Administrator Response
This is
a probable user error. Correct the volume serial number and re-issue
the request. Refer to z/OS DFSMS Using Magnetic Tapes 
for information about tape labels.