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SG_LUNS(8)			   SG3_UTILS			    SG_LUNS(8)

NAME
       sg_luns - send the SCSI REPORT LUNS command

SYNOPSIS
       sg_luns	[--decode]  [--help]  [--hex]  [--quiet] [--raw] [--select=SR]
       [--verbose] [--version] DEVICE

DESCRIPTION
       Send the SCSI REPORT  LUNS  command  to	the  DEVICE  and  outputs  the
       response. In the SPC-3 SCSI standard support for this command is manda‐
       tory.

OPTIONS
       Arguments to long options are mandatory for short options as well.

       -d, --decode
	      decode logical  unit  numbers  into  their  hierarchical	parts.
	      Interprets  luns as described in SAM-3 when the HiSup bit is set
	      in a standard INQUIRY's response.

       -h, --help
	      output the usage message then exit.

       -H, --hex
	      output response to this command in ASCII hex.

       -q, --quiet
	      output ASCII hex rendering of each report lun, one per line.

       -r, --raw
	      output response in binary (to stdout).

       -s, --select=SR
	      this option sets the 'select report'  field  (SR)	 in  the  SCSI
	      REPORT LUNS command. The default value is 0. When 0 is given (or
	      this option is not specified) then the  DEVICE  should  yield  a
	      list  of luns addressable via this "I_T nexus" that use the fol‐
	      lowing lun addressing methods: logical unit addressing,  periph‐
	      eral  device  addressing	and  flat space addressing.  When 1 is
	      given the DEVICE should yield a list of only "well known"	 logi‐
	      cal  units addressable via this "I_T" nexus. When 2 is given the
	      DEVICE should yield all luns addressable via this	 "I_T"	nexus.
	      To  simplify,  for the I_T nexus associated with the DEVICE, the
	      meanings of the SR values are:
		0 : all luns excluding well known logical units
		1 : well known logical units
		2 : all luns
	      Values greater than 2 are reserved (at SPC-4 (rev 8)).

       -v, --verbose
	      increase the level of verbosity, (i.e. debug output).

       -V, --version
	      print the version string and then exit.

EXIT STATUS
       The exit status of sg_luns is 0 when it is  successful.	Otherwise  see
       the sg3_utils(8) man page.

AUTHORS
       Written by Douglas Gilbert.

REPORTING BUGS
       Report bugs to <dgilbert at interlog dot com>.

COPYRIGHT
       Copyright © 2004-2007 Douglas Gilbert
       This  software is distributed under a FreeBSD license. There is NO war‐
       ranty; not even for MERCHANTABILITY or FITNESS FOR  A  PARTICULAR  PUR‐
       POSE.

SEE ALSO
       sg_inq(8)

sg3_utils-1.24			  March 2007			    SG_LUNS(8)

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