ICP361I DEVICE NUMBER xxxx IN SUBCHANNEL SET w ASSIGNED TO CONTROL UNIT yyyy IS DUPLICATED IN A LOGICAL PARTITION IN CSS z
Explanation
Device number xxxx in subchannel set w assigned to control unit yyyy was defined more than one time in a logical partition in CSS z. A logical partition cannot access more than one device in a subchannel set with the same device number.
IOCP determines if a logical partition can access a device by testing the access lists of the chpids assigned to the devices along with the device candidate lists (PART, PARTITION, or NOTPART keyword in the IODEVICE statement). The duplicate device number error occurs if an access list of a chpid assigned to each device includes the same logical partition and the device candidate lists of each device include the same logical partition and the devices are in the same subchannel set.
System action
IOCP does not complete the generation of an IOCDS and does not produce configuration reports.
Programmer response
Ensure that device numbers in a subchannel set are not duplicated within a logical partition. Logical partitions must use unique device numbers in a subchannel set.
- Change the device number so that it is not duplicated
- Modify the initial access lists of the chpids assigned to the two devices so that they do not specify the same logical partition
- Modify the device candidate lists so that they do not specify the same logical partition