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Manpage of SG_LUNS
SG_LUNS
Section: SG3_UTILS (8)
Updated: March 2007
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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 mandatory.
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 following lun addressing methods: logical
unit addressing, peripheral device addressing and flat space addressing.
When 1 is given the DEVICE should yield a list of only "well known"
logical 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
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
SEE ALSO
sg_inq(8)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- EXIT STATUS
-
- AUTHORS
-
- REPORTING BUGS
-
- COPYRIGHT
-
- SEE ALSO
-
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Time: 21:51:18 GMT, May 09, 2007