dmraid -V (return code: 1)
dmraid: unrecognized option '--VERSION'
dmraid --help (return code: 0)
dmraid: Device-Mapper Software RAID tool
* = [-d|--debug]... [-v|--verbose]... [-i|--ignorelocking]
dmraid {-a|--activate} {y|n|yes|no} *
[-f|--format FORMAT[,FORMAT...]]
[-P|--partchar CHAR]
[-p|--no_partitions]
[--separator SEPARATOR]
[-t|--test]
[-Z|--rm_partitions] [RAID-set...]
dmraid {-b|--block_devices} *
[-c|--display_columns][FIELD[,FIELD...]]...
[device-path...]
dmraid {-h|--help}
dmraid {-l|--list_formats} *
dmraid {-n|--native_log} *
[-f|--format FORMAT[,FORMAT...]]
[--separator SEPARATOR]
[device-path...]
dmraid {-r|--raid_devices} *
[-c|--display_columns][FIELD[,FIELD...]]...
[-D|--dump_metadata]
[-f|--format FORMAT[,FORMAT...]]
[--separator SEPARATOR]
[device-path...]
dmraid {-r|--raid_devices} *
{-E|--erase_metadata}
[-f|--format FORMAT[,FORMAT...]]
[--separator SEPARATOR]
[device-path...]
dmraid {-s|--sets}...[a|i|active|inactive] *
[-c|--display_columns][FIELD[,FIELD...]]...
[-f|--format FORMAT[,FORMAT...]]
[-g|--display_group]
[--separator SEPARATOR]
[RAID-set...]
dmraid {-f|--format FORMAT}
{-C|--create RAID-set}
{--type RAID-level}
[--size [0-9]...[kKgG][bB]]
[--str[i[de]] [0-9]...[kK][bB]]
{--disk[s] "device-path[, device-path..."}
dmraid {-x|--remove RAID-set}
dmraid {-R|--rebuild} RAID-set [drive_name]
dmraid [{-f|--format FORMAT}]
{-S|--spare [RAID-set]}
{-M|--media "device-path"}
dmraid {-V/--version}