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RESCAN-SCSI-BUS.SH

Section: User Commands (8)
Updated: December 2022
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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 descripion 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

 

Index

NAME
SYNOPSIS
OPTIONS
SEE ALSO
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Time: 04:00:44 GMT, August 02, 2023