IBM TOTAL STORAGE DS8000 - Manual (Page 292)

CMUN03016E SOURCE Copy Services feature not installed
Explanation
The Copy Services feature is not installed on the storage unit.
Action
Contact IBM technical support for assistance.
CMUN03017E SOURCE Copy Services feature not supported.
Explanation
The storage unit does not support the requested Copy Services feature.
Action
Contact IBM technical support for assistance.
CMUN03018E SOURCE Copy Services server internal error
Explanation
The storage management console server reports a Copy Services server internal
error.
Action
Contact IBM technical support for assistance.
CMUN03019E SOURCE Copy Services operation failure: critical volume
mode unavailable
Explanation
Critical volume mode cannot be specified with Global Mirror.
Action
Do not specify critical volume mode, and then resubmit the task. Contact IBM
technical support for assistance.
CMUN03020E SOURCE Copy Services operation failure: device not
found
Explanation
One of the following might be occurring:
v The request is being issued to an unconfigured logical volume.
v The request requires at least one configured volume, and no volumes are
configured for the logical subsystem.
v An unknown error
272 IBM TotalStorage DS8000: Messages Reference