CBR2811I REFORMAT volume old_volser rejected. New volume serial number new_volser invalid.
Explanation
The new volume serial number new_volser supplied does not conform to MVS™ volume serial number conventions.
System action
The command is rejected.
System programmer response
Reissue the command with a correct new volume serial number.
Source
Object Access Method (OAM)
Routing Code
2,4,6
Descriptor Code
4