"disk '%s' belongs to diskgroup \"%s\""
*Cause: An attempt was made to ADD to a diskgroup a disk that was
already part of another diskgroup, or an attempt was made to
DROP / OFFLINE / ONLINE / CHECK a disk that was not part of
the specified diskgroup.
*Action: For ADD, check the path specifier for the disk. If it is certain
that the disk is not in use by another diskgroup, the FORCE option
may be used to override this check. For the other commands, check
the name of the specified disk.