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.