CMMVC8459E The volume cannot be removed because the volume has received I/O within the defined volume protection period.
Explanation
If the last volume copy is being deleted, volume protection is enabled, and the volume being deleted has received I/O within the defined volume protection time period, then the command will fail.This behaviour is not changed by the volume being mapped/unmapped.
Deleting one (of two) volume copies is not affected.
The force flag does not affect this policing behaviour. For example, the force flag does not override the policing.