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RESCAN-SCSI-BUS.SH(1)						   User Commands					     RESCAN-SCSI-BUS.SH(1)

NAME - script for adding and removing SCSI devices without rebooting SYNOPSIS [options] [host [host ...]] OPTIONS
-a, --alltargets scan all targets, not just currently existing [default: disabled] -d enable debug [default: 0] -l activates scanning for LUNs 0--7 [default: 0] -L NUM activates scanning for LUNs 0--NUM [default: 0] -w, --wide scan for target device IDs 0--15 [default: 0--7] -c enables scanning of channels 0 1 [default: 0 / all detected ones] -r, --remove enables removing of devices [default: disabled] -f, --flush flush failed multipath devices [default: disabled] -i, --issue-lip issue a FibreChannel LIP reset [default: disabled] -u, --update look for existing disks that have been remapped -s, --resize look for resized disks and reload associated multipath devices, if applicable --forcerescan rescan existing devices --forceremove remove and readd every device (DANGEROUS) --nooptscan don't stop looking for LUNs is 0 is not found --color use coloured prefixes OLD/NEW/DEL --hosts=LIST scan only host(s) in LIST --channels=LIST scan only channel(s) in LIST --ids=LIST scan only target ID(s) in LIST --luns=LIST scan only lun(s) in LIST --sync, --nosync issue a sync / no sync [default: sync if remove] --attachpq3 tell kernel to attach sg to LUN 0 that reports PQ=3 --reportlun2 tell kernel to try REPORT_LUN even on SCSI2 devices --largelun tell kernel to support LUNs > 7 even on SCSI2 devs --sparselun tell kernel to support sparse LUN numbering Host numbers may thus be specified either directly on cmd line (deprecated) or 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.) SEE ALSO Homepage: sg3_utils Homepage: 1.57 leden 2014 RESCAN-SCSI-BUS.SH(1)

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scsi-spin(8)						      System Manager's Manual						      scsi-spin(8)

scsi-spin - spin up and down a SCSI device SYNOPSIS
scsi-spin [-options...] [device] DESCRIPTION
scsi-spin let the user to manually spin up and down a SCSI device. This command is particularly useful if you've got noisy (or hot) drives in a machine that you rarely need to access. This is not the same as the kernel patch that's floating around that will automatically spin down the drive after some time. scsi-spin is completely manual, and spinning down a drive that's in use, especially the one containing the scsi-spin binary, is probably a really bad idea. To avoid running in trouble with such cases, scsi-spin verifies that the device to work on is not currently in use by scanning the mounted file system description file for a partition living on it and issue an error if this the case. OPTIONS
-u, --up spin up device. -d, --down spin down device. -e, --loej load or eject medium from drive (use along with -u or -d ) -w, --wait=[n] wait up to n seconds for the spin up/down command to complete. Default is to return immediately after the command was sent to the device. Either repeat -w n times or set n to define the time to wait before to report a timeout. -l, --lock prevent removal of medium from device. -L, --unlock allow removal of medium from device. -I, --oldioctl use legacy ioctl interface instead of SG_IO to dialog with device (could not be supported on all platforms). -e and -w are not allowed with this option. -v, --verbose=[n] verbose mode. Either repeat -v or set n accordingly to increase verbosity. 1 is verbose, 2 is debug (dump SCSI commands and Sense buffer). -f, --force force spinning up/down the device even if it is in use. -n, --noact do nothing but check if the device is in use. -p, --proc use /proc/mounts instead of /etc/mtab to determine if the device is in use or not. device the device is any name in the filesystem which points to a SCSI block device (sd, scd) or generic SCSI device (sg). See section below. SCSI devices naming convention Old kernel naming convention It is typically /dev/sd[a-z] , /dev/scd[0-9]* or /dev/sg[0-9]*. scsidev naming convention It is typically /dev/scsi/s[rdg]h[0-9]*-e????c?i?l? or /dev/scsi/<aliasname>. devfs naming convention It is typically /dev/scsi/host[0-9]/bus[0-9]/target[0-9]/lun[0-9]/disc (same for cd and generic devices) or short name /dev/sd/c[0-9]b[0-9]t[0-9]u[0-9] when devfsd "new compatibility entries" naming scheme is enabled. SEE ALSO
scsiinfo(8), sg_start(8), sd(4), proc(5), AUTHORS
Eric Delaunay <>, 2001 Rob Browning <>, 1998 03 September 2001 scsi-spin(8)

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