script to add and remove SCSI devices without rebooting

SYNOPSIS [--alltargets] [--attachpq3] [-c] [--color] [---channels=CLIST] [-d] [--flush] [--forceremove] [--forcerescan] [--help] [--hosts=HLIST] [--ids=TLIST] [--issue-lip] [-l] [-L NUM] [--luns=LLIST] [--multipath] [--nooptscan] [--remove] [--removelun2] [--resize] [--sparselun] [--sync] [--update] [--version] [--wide] [HOST1 [HOST2 ...]]


-a, --alltargets
scan all targets, not just currently existing [default: disabled]
tell kernel to attach sg to LUN 0 that reports PQ=3
enables scanning of channels 0 1 [default: 0 / all detected ones]
use coloured prefixes OLD/NEW/DEL
scan only channel(s) in CLIST
enable debug [default: 0]
-f, --flush
flush failed multipath devices [default: disabled]
remove and readd every device (DANGEROUS)
rescan existing devices
-h, --help
print usage message then exit
scan only host(s) in HLIST
scan only target ID(s) in TLIST
-i, --issue-lip
issue a FibreChannel LIP reset [default: disabled]
activates scanning for LUNs 0--7 [default: 0]
activates scanning for LUNs 0--NUM [default: 0]
tell kernel to support LUNs > 7 even on SCSI2 devs
scan only lun(s) in NLIST
-m, --multipath
update multipath devices [default: disabled]
don't stop looking for LUNs is 0 is not found
-r, --remove
enables removing of devices [default: disabled]
tell kernel to try REPORT_LUN even on SCSI2 devices
-s, --resize
look for resized disks and reload associated multipath devices, if applicable
tell kernel to support sparse LUN numbering
--sync, --nosync
issue a sync / no 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 or with the --hosts=LIST parameter (recommended).

Arguments to options that end in LIST (e.g. TLIST) can have this form:

which is a comma separated list of single values and/or ranges (no spaces allowed).