IBM TOTAL STORAGE DS8000 - Manual (Page 209)

Action
Create at least one rank and volume, and then resubmit the task.
CMUN02178E SOURCE Unable to reset Copy Services settings on
logical subsystems
Explanation
The storage management console server reports a storage unit microcode-level
error.
Action
Contact IBM technical support for assistance.
CMUN02179E SOURCE Unable to reset Copy Services settings on
logical subsystem
Explanation
The storage management console server reports a storage unit microcode-level
error.
Action
Contact IBM technical support for assistance.
CMUN02180E SOURCE Unable to reserve rank
Explanation
The rank is not assigned. Only assigned ranks can be reserved.
Action
Assign the rank or choose an assigned rank, and then resubmit the task.
CMUN02181E SOURCE Unable to modify SCSI host port
Explanation
The storage management console server reports a storage unit microcode-level
error.
Action
Contact IBM technical support for assistance.
CMUN02182E SOURCE Unable to modify SCSI host port
Explanation
The storage management console server reports a storage unit microcode-level
error.
Chapter 7. DS storage management console server messages 189