IBM TOTAL STORAGE DS8000 - Manual (Page 279)

Action
Contact IBM technical support for assistance.
CMUN02402E SOURCE Unable to create rank: failed disk drives
detected
Explanation
The specified storage includes failed disk drives. These drives must be replaced
before a rank can be created on them.
Action
Specify a different array, or ensure that the failed disk drives are replaced. Then
resubmit the task.
CMUN02403E SOURCE Unable to create rank: not a licensed operation
Explanation
Your current license does not permit you to create the rank.
Action
Obtain and install the appropriate license key, and then resubmit the task.
CMUN02404E SOURCE Unable to create rank: maximum number of ranks
already created
Explanation
The maximum number of ranks already has been created.
Action
Delete unused ranks or install and license more storage capacity. Then resubmit the
task.
CMUN02405E SOURCE Unable to delete rank: Extents on the rank are
in use.
Explanation
Extents on the rank are still assigned to a valid volume group. You must delete
volumes that use extents on the rank before you can delete the rank.
Action
Ensure that no extents from the rank are assigned, and then resubmit the task.
Chapter 7. DS storage management console server messages 259