IBM TOTAL STORAGE DS8000 - Manual (Page 233)

CMUN02282E SOURCE Unable to create CKD logical volume: CKD volumes
require a CKD logical subsystem.
Explanation
You must create a count-key-data type logical subsystem before you can create
count-key-data type volumes.
Action
Create a CKD logical subsystem, and then resubmit the task. If the problem
persists, contact IBM technical support for assistance.
CMUN02283E SOURCE Unable to create CKD alias logical volume: no
base volume exists.
Explanation
The specification contains a reference to a nonexistent base volume. A
count-key-data alias can be created for existing base volumes only.
Action
Specify a valid base volume that is contained within the same logical subsystem,
and then resubmit the task. If the problem persists, contact IBM technical support
for assistance.
CMUN02284E SOURCE Logical subsystem operation failure: logical
subsystem does not exist.
Explanation
The specification contains a reference to a nonexistent logical subsystem.
Action
Specify an existing logical subsystem, and then resubmit the task. If the problem
persists, contact IBM technical support for assistance.
CMUN02285E SOURCE Unable to create rank: array does not exist.
Explanation
The specification contains a reference to a nonexistent array.
Action
Specify an existing array, and then resubmit the task. If the problem persists,
contact IBM technical support for assistance.
Chapter 7. DS storage management console server messages 213