IEF502I

Explanation
text is one of the following: DUPLICATE VOLUME SERIAL

{UNIT dev1 UNLOADED|UNIT dev1 NOT VARIED}

DUPLICATE VOLUME vol IS ON UNIT dev2

During
allocation processing, the system found a duplicate volume serial
number.
In the message text: DUPLICATE VOLUME SERIAL
A volume has been found with the same serial number as another
volume.
dev1 or dev2
The device number of the unit.
UNIT dev1 UNLOADED
The system unloaded the volume on dev1 during
normal processing to detect premounted volumes.
UNIT dev1 NOT VARIED
The system did not vary dev1 online. When a
tape or direct access device (DASD) device is varied online, the system
reads the volume serial. While trying to vary dev1 online,
the system found the same volume name on online unit dev2.
The system cannot vary unit dev1 online; it remains
offline.
DUPLICATE VOLUME vol IS ON UNIT dev2
A volume label read for the volume mounted on unit dev1 found
a volume, but a volume with the same name is already mounted on online
unit dev2.  The system does not support duplicate
volume serial numbers.

System action
Depending on the message text, the system does
the following: DUPLICATE VOLUME SERIAL
The system unloads the volume and issues message IEF234E.
UNIT dev1 UNLOADED
UNIT dev1 NOT VARIED
DUPLICATE VOLUME vol IS ON UNIT dev2
If unit dev1 is online, the system unloads
the unit. If the volume label was read during a vary online request,
the system leaves unit dev1 offline.

Operator response
Depending on the message text, do the following: DUPLICATE VOLUME SERIAL
Demount the volume in response to message IEF234E.
UNIT dev1 UNLOADED
UNIT dev1 NOT VARIED
DUPLICATE VOLUME vol IS ON UNIT dev2
Determine whether unit dev1 or dev2 should
be unavailable to the system and then demount the volume or keep the
unit offline.

Source
Allocation

Module
IEFAB473

Routing code
*/3/4

Descriptor code
4/5