sg_rep_zones - send SCSI REPORT ZONES command
sg_rep_zones [--help] [--hex]
[--maxlen=LEN] [--num=NUM] [--raw] [--readonly]
[--report=OPT] [--start=LBA] [--verbose]
[--version] [--wp] DEVICE
Sends a SCSI REPORT ZONES command to DEVICE and outputs the
data returned. This command is found in the ZBC draft standard, revision 5
(zbc-r05.pdf).
Arguments to long options are mandatory for short options as
well.
- -h, --help
- output the usage message then exit.
- -H, --hex
- output the response in hexadecimal to stdout. When used once the whole
response is output in ASCII hexadecimal with a leading address (starting
at 0) on each line. When used twice each zone descriptor in the response
is output separately in hexadecimal. When used thrice the whole response
is output in hexadecimal with no leading address (on each line).
- -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 (or
LEN is zero) then 8192 is used. The maximum allowed value of
LEN is 1048576.
- -n,
--num=NUM
- where NUM is the (maximum) number of zone descriptors to print out.
The default value is zero which is taken to mean print out all zone
descriptors returned by the REPORT ZONES command.
- -p, --partial
- set the PARTIAL bit in the cdb.
- -r, --raw
- output the SCSI response (i.e. the data-out buffer) 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.
- -o,
--report=OPT
- where OPT will become the contents of the REPORTING OPTION field in
the cdb. The default value is 0 which means report a list of all zones.
Some other values are 1 for list zones with a zone condition of empty; 2
for list zones with a zone condition of implicitly opened; 3 for list
zones with a zone condition of explicitly opened; 4 for list zones with a
zone condition of closed; 5 for list zones with a zone condition of full;
6 for list zones with a zone condition of read only; 7 for list zones with
a zone condition of offline. Other values are 0x10 for list zones with RWP
recommended set to true; 0x11 for list zones with non-sequential write
resource active set to true and 0x3f for list zones with a zone condition
of not write pointer.
- -s,
--start=LBA
- where LBA is at the start or within the first zone to be reported.
The default value is 0. If LBA is not a zone start LBA then the
preceding zone start LBA is used for reporting. Assumed to be in decimal
unless prefixed with '0x' or has a trailing 'h' which indicate
hexadecimal.
- -v, --verbose
- increase the level of verbosity, (i.e. debug output).
- -V, --version
- print the write pointer (in hex) only. In the absence of errors, then a
hex LBA will be printed on each line, one line for each zone. Can be
usefully combined with the --num=NUM and --start=LBA
options.
- -w, --wp
- print the version string and then exit.
The exit status of sg_rep_zones is 0 when it is successful.
Otherwise see the sg3_utils(8) man page.
Written by Douglas Gilbert.
Report bugs to <dgilbert at interlog dot com>.
Copyright © 2014-2020 Douglas Gilbert
This software is distributed under a FreeBSD license. There is NO warranty;
not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
sg_reset_wp,sg_zone(sg3_utils)