20160201

Usage: rescan-scsi-bus.sh [options] [host [host ...]] Options: -a scan all targets, not just currently existing [default: disabled] -c enables scanning of channels 0 1 [default: 0 / all detected ones] -d enable debug [default: 0] -f flush failed multipath devices [default: disabled] -h help: print this usage message then exit -i issue a FibreChannel LIP reset [default: disabled] -I SECS issue a FibreChannel LIP reset and wait for SECS seconds [default: disabled] -l activates scanning for LUNs 0--7 [default: 0] -L NUM activates scanning for LUNs 0--NUM [default: 0] -m update multipath devices [default: disabled] -r enables removing of devices [default: disabled] -s look for resized disks and reload associated multipath devices, if applicable -u look for existing disks that have been remapped -V print version date then exit -w scan for target device IDs 0--15 [default: 0--7] --alltargets: same as -a --attachpq3: Tell kernel to attach sg to LUN 0 that reports PQ=3 --channels=LIST: Scan only channel(s) in LIST --color: use coloured prefixes OLD/NEW/DEL --flush: same as -f --forceremove: Remove and readd every device (DANGEROUS) --forcerescan: Rescan existing devices --help: print this usage message then exit --hosts=LIST: Scan only host(s) in LIST --ids=LIST: Scan only target ID(s) in LIST --issue-lip: same as -i --issue-lip-wait=SECS: same as -I --largelun: Tell kernel to support LUNs > 7 even on SCSI2 devs --luns=LIST: Scan only lun(s) in LIST --multipath: same as -m --nooptscan: don't stop looking for LUNs is 0 is not found --remove: same as -r --reportlun2: Tell kernel to try REPORT_LUN even on SCSI2 devices --resize: same as -s --sparselun: Tell kernel to support sparse LUN numbering --sync/nosync: Issue a sync / no sync [default: sync if remove] --update: same as -u --version: same as -V --wide: same as -w Host numbers may thus be specified either directly on cmd line (deprecated) or with the --hosts=LIST parameter (recommended). LIST: A[-B][,C[-D]]... is a comma separated list of single values and ranges (No spaces allowed.)