ADR344I

Explanation
A RESTORE or COPY resulted in a duplicate volume
serial number in the specified UCB (device_number).

System action
The volume on the UCB is made unavailable to the
system. Message ADR320I precedes this message.

Operator response
To make the new volume available to the system,
the old volume with this volume serial must be unloaded or varied
offline before the new volume is made available to the system.

Programmer response
None.

Source
DFSMSdss