Name
rescan-scsi-bus.sh - script to add and remove SCSI devices without rebootingSynopsis
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] [--nooptscan] [--nosync] [--remove] [--removelun2] [--resize] [--sparselun] [--sync] [--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 readd 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]
--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]
-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: http://fibrevillage.com/storage/585-rescan-scsi-bus-sh-script-for-adding-and-removing-scsi-devices-without-rebooting
sg3_utils Homepage: http://sg.danny.cz/sg