Usage: sg_luns    [--decode] [--help] [--hex] [--inhex-FN] [--inner-hex]
                  [--json[=JO]] [--js-file=JFN] [--linux] [--lu_cong]
                  [--maxlen=LEN] [--quiet] [--raw] [--readonly]
                  [--select=SR] [--sinq_inraw=RFN] [--verbose] [--version]
                  DEVICE
     or
       sg_luns    --test=ALUN [--decode] [--hex] [--lu_cong] [--verbose]
  where:
    --decode|-d        decode all luns into component parts
    --help|-h          print out usage message
    --hex|-H           output response in hexadecimal; used twice
                       shows decoded values in hex
    --inhex=FN|-i FN    contents of file FN treated as hex and used
                        instead of DEVICE which is ignored
    --inner-hex|-I     when --decode given, output decoded values in
                       hex (def: decimal)
    --json[=JO]|-j[=JO]    output in JSON instead of plain text
                           Use --json=? for JSON help
    --js-file=JFN|-J JFN    JFN is a filename to which JSON output is
                            written (def: stdout); truncates then writes
    --linux|-l         show Linux integer lun after T10 representation
    --lu_cong|-L       decode as if LU_CONG is set; used twice:
                       decode as if LU_CONG is clear
    --maxlen=LEN|-m LEN    max response length (allocation length in cdb)
                           (def: 0 -> 8192 bytes)
    --quiet|-q         output only ASCII hex lun values
    --raw|-r           output response in binary
    --readonly|-R      open DEVICE read-only (def: read-write)
    --select=SR|-s SR    select report SR (def: 0)
                          0 -> luns apart from 'well known' lus
                          1 -> only 'well known' logical unit numbers
                          2 -> all luns
                          0x10 -> administrative luns
                          0x11 -> admin luns + non-conglomerate luns
                          0x12 -> admin lun + its subsidiary luns
    --sinq_inraw=RFN|-Q RFN    read raw (binary) standard INQUIRY
                               response from the RFN filename
    --test=ALUN|-t ALUN    decode ALUN and ignore most other options
                           and DEVICE (apart from '-H')
    --verbose|-v       increase verbosity
    --version|-V       print version string and exit

Performs a SCSI REPORT LUNS command or decodes the given ALUN. When SR is
0x10 or 0x11 DEVICE must be LUN 0 or REPORT LUNS well known logical unit;
when SR is 0x12 DEVICE must be an administrative logical unit. When the
--test=ALUN option is given, decodes ALUN rather than sending a REPORT
LUNS command.