NAME
rescan-scsi-bus.sh - script to add and remove SCSI devices without rebooting
SYNOPSIS
rescan-scsi-bus.sh [--alltargets] [--attachpq3] [-c] [--channels=CLIST] [--color] [-d] [--flush] [-f] [--forceremove] [--forcerescan] [--help] [--hosts=HLIST] [--ids=TLIST] [--ignore-rev] [--issue-lip] [-i] [--issue-lip-wait=SECS] [-I SECS] [-l] [-L NUM] [--largelun] [--luns=LLIST] [-m] [--multipath] [--no-lip-scan] [--nooptscan] [--nosync] [--remove] [--removelun2] [--resize] [--sparselun] [--sync] [--timeout=SECS] [--update] [--version] [--wide] [HOST1 [HOST2 ...]]
OPTIONS
Option are ordered by their long name. Those without a long name are ordered as if their single letter was a long name.
- -a, --alltargets
-
scan all targets, not just currently existing [default: disabled]
- --attachpq3
-
tell kernel to attach sg to LUN 0 that reports PQ=3
- -c
-
enables scanning of channels 0 1 [default: 0 / all detected ones]
- --channels=CLIST
-
scan only channel(s) in CLIST
- --color
-
use coloured prefixes OLD/NEW/DEL
- -d
-
enable debug [default: 0]
- -f, --flush
-
flush failed multipath devices [default: disabled]
- --forceremove
-
remove stale devices (DANGEROUS)
- --forcerescan
-
remove and re-add existing devices (DANGEROUS)
- -h, --help
-
print usage message then exit
- --hosts=HLIST
-
scan only host(s) in HLIST
- --ids=TLIST
-
scan only target ID(s) in TLIST
- --ignore-rev
-
ignore (firmware) revision change. This is the third text field (4 bytes long) in a standard INQUIRY response.
- -i, --issue-lip
-
issue a FibreChannel LIP reset [default: disabled]
- -I SECS, --issue-lip-wait=SECS
-
issue a FibreChannel LIP reset and then wait SECS seconds.
- -L NUM
-
activates scanning for LUNs 0--NUM [default: 0]
- -l
-
activates scanning for LUNs 0--7 [default: 0]
- --largelun
-
tell kernel to support LUNs > 7 even on SCSI2 devs
- --luns=NLIST
-
scan only lun(s) in NLIST
- -m, --multipath
-
update multipath devices [default: disabled]
- --no-lip-scan
-
don't scan FC Host when the --issue-lip option is also given.
- --nooptscan
-
don't stop looking for LUNs is 0 is not found
- --nosync
-
do not issue a sync [default: sync if remove]
- -r, --remove
-
enables removing of devices [default: disabled]
- --reportlun2
-
tell kernel to try REPORT_LUN even on SCSI2 devices
- -s, --resize
-
look for resized disks and reload associated multipath devices, if applicable
- --sparselun
-
tell kernel to support sparse LUN numbering
- --sync
-
issue a sync [default: sync if remove]
- -t, --timeout=SECS
-
timeout for testing if device is online. Test is skipped if 0 [default: 30 (seconds)]
- -u, --update
-
look for existing disks that have been remapped
- -V, --version
-
shows version string then exits. The version string is a numeric datestamp of the form YYYYMMDD.
- -w, --wide
-
scan for target device IDs 0--15 [default: 0--7]
-
Host numbers may thus be specified either directly on cmd line (deprecated) or with the --hosts=LIST parameter (recommended).
Arguments to options that end in LIST (e.g. TLIST) can have this form:
A[-B][,C[-D]]...
which is a comma separated list of single values and/or ranges (no spaces allowed).
SEE ALSO
There is a brief description here: https://fibrevillage.com/storage/585-rescan-scsi-bus-sh-script-for-adding-and-removing-scsi-devices-without-rebooting
sg3_utils Homepage: https://sg.danny.cz/sg