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SG_REFERRALS(8)                    SG3_UTILS                   SG_REFERRALS(8)


NAME

       sg_referrals - send SCSI REPORT REFERRALS command


SYNOPSIS

       sg_referrals [--help] [--hex] [--lba=LBA] [--maxlen=LEN] [--one-
       segment] [--raw] [--readonly] [--verbose] [--version] DEVICE


DESCRIPTION

       Send the SCSI REPORT REFERRALS command to the DEVICE and outputs the
       response. This command was introduced in (draft) SBC-3 revision 24 and
       devices that support referrals should support this command.

       The default action is to decode the response for all user data segment
       referral descriptors. The amount of output can be reduced by the --lba
       and --one-segment options.


OPTIONS

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

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

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

       -l, --lba=LBA
              where LBA is the Logical Block Address (LBA) in the first user
              data segment the DEVICE should report the referrals parameter
              data for.

       -m, --maxlen=LEN
              where LEN is the (maximum) response length in bytes. It is
              placed in the cdb's "allocation length" field. If not given then
              256 is used. 256 is enough space for the response header and
              user data segment descriptors.

       -s, --one-segment
              report the user data segment of the segment spefified by the LBA
              parameter only.

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

       -R, --readonly
              open the DEVICE read-only (e.g. in Unix with the O_RDONLY flag).
              The default is to open it read-write.

       -v, --verbose
              increase the level of verbosity, (i.e. debug output). Additional
              output caused by this option is sent to stderr.

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


NOTES

       For a discussion of referrals see section 4.25 of sbc3r25.pdf at
       http://www.t10.org (or the corresponding section of a later draft).


EXIT STATUS

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


AUTHORS

       Written by Douglas Gilbert and Hannes Reinecke.


REPORTING BUGS

       Report bugs to <dgilbert at interlog dot com>.


COPYRIGHT

       Copyright (C) 2009-2014 Douglas Gilbert and Hannes Reinecke
       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_vpd(8)

sg3_utils-1.39                     May 2014                    SG_REFERRALS(8)

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