IBM TOTAL STORAGE DS8000 - Manual (Page 321)

The minimum number of unique new passwords that must be used before an old
password can be reused is four.
Action
Specify a valid password, and then resubmit the task.
CMUN05013E SOURCE Operation failure: password same as previous
password
Explanation
A user account password cannot be used again.
Action
Specify a password that has not been used previously, and then resubmit the task.
CMUN05014E SOURCE Operation failure: alternate repository not
accessible
Explanation
The storage management console server reports an internal security error.
Action
Contact IBM technical support for assistance.
CMUN05015E SOURCE Operation failure: local repository not
accessible
Explanation
The storage management console server reports an internal security error.
Action
Contact IBM technical support for assistance.
CMUN05016E SOURCE Operation failure: request timed out
Explanation
The storage management console server reports an internal security error. A
security request is timing out. The alternate repository might not be responding.
Action
Contact IBM technical support for assistance.
Chapter 7. DS storage management console server messages 301