CMMVC7155E: The Create FlashCopy mapping task cannot be initiated
because the source or target volume is being used
as a change volume for a Metro Mirror or Global Mirror relationship.
Explanation
A volume cannot become the source
or target of a FlashCopy mapping while in use as a change volume in
a Metro Mirror or Global Mirror relationship.
User Response
Specify a volume other than
the source or target that is currently in use.