To prevent active volumes or host mappings from being deleted inadvertently, the system supports a global setting that prevents these objects from being deleted if the system detects that they had recent I/O activity.
Use the chsystem command to set an interval at which the volume must be idle before it can be deleted from the system. Any command that is affected by this setting will fail. If the -force parameter is used, the deletion fails if the volume has not been idle for the specified interval.
To enable volume protection by setting an inactive interval to prevent deletion of volumes, complete the following step: