sg_referrals - send SCSI REPORT REFERRALS command
] [ --one-segment
] [ --verbose
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
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.
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).
The exit status of sg_referrals is 0 when it is successful. Otherwise see the
sg3_utils(8) man page.
Written by Douglas Gilbert and Hannes Reinecke.
Report bugs to <dgilbert at interlog dot com>.
Copyright © 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.