IBM TOTAL STORAGE DS8000 - Manual (Page 290)

CMUN03008E SOURCE Copy Services operation failure: cascading
FlashCopy prohibited
Explanation
A FlashCopy target cannot be a FlashCopy source or the target of another
relationship.
Action
Specify a logical volume that is not a FlashCopy target, and then resubmit the task.
Contact IBM technical support for assistance.
CMUN03009E SOURCE Copy Services operation failure: cascading
primary
Explanation
A cascading primary logical volume cannot be in a Global Mirror relationship.
Action
Specify a logical volume that is not a cascading primary, and then resubmit the
task. Contact IBM technical support for assistance.
CMUN03010E SOURCE Copy Services operation failure: cascading
secondary noncascade
Explanation
The specified volume was not established with the cascading option.
Action
Specify a volume that has been established with the cascading option, and then
resubmit the task. Contact IBM technical support for assistance.
CMUN03011E SOURCE Copy Services operation failure: cascading
secondary synchronous
Explanation
Cascading secondaries cannot be primary volumes in a Metro Mirror relationship.
Action
Specify a logical volume that is not a cascading secondary, and then resubmit the
task. Contact IBM technical support for assistance.
270 IBM TotalStorage DS8000: Messages Reference