rescan-scsi-bus.sh - script to add and remove SCSI devices without rebooting 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 ...]] 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).

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