A customer needs to replace a failed tape controller card on a running partition. The service action
Serviceability-> Hardware -> Exchange ERU has been started. The card has been selected and
the service action has been launched.
The message “The requested service action cannot currently be completed from this management
console” is displayed.
What is the most likely reason for this error?

A.
The service domain for the partition is still active.

B.
The adapter has not been deallocated from the partition.

C.
The partition is controlled by another HMC in the environment.

D.
The tape device associated with the adapter is notvaried off.