CHANNEL [=] ['] channel_id ['] | DELETE [ALL] INPUT | DISKRATIO [=] integer | FILESPERSET [=] integer | FORCE | FORMAT [=] formatSpec [, formatSpec]... | FROM TAG [=] ['] tag_name ['] | INCLUDE CURRENT CONTROLFILE [FOR STANDBY] | keepOption | MAXSETSIZE [=] sizeSpec | notBackedUpSpec | NOEXCLUDE | POOL [=] integer | REUSE | skipSpec | TAG [=] ['] tag_name [']