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Manpage of scsi-spin

scsi-spin

Section: Maintenance Commands (8)
Updated: 03 September 2001
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NAME

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.
-n, --noact
do nothing but check if the device is in use.
-f, --force
force spinning up/down the device even if it 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), sd(4), proc(5),

 

AUTHORS

Eric Delaunay <delaunay@debian.org>, 2001
Rob Browning <rlb@cs.utexas.edu>, 1998

 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SCSI devices naming convention
Old kernel naming convention
scsidev naming convention
devfs naming convention
SEE ALSO
AUTHORS
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Time: 21:04:53 GMT, April 19, 2024