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SG_REFERRALS(8) SG3_UTILS SG_REFERRALS(8)

sg_referrals - send SCSI REPORT REFERRALS command

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

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.

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.

sg_vpd(8)
May 2014 sg3_utils-1.39

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