SCSIMODES(8)SCSIMODES(8)NAME
scsimodes - Determine the geometry and capacity of a SCSI disk drive
SYNOPSIS
usretcscsimodes [ -C ] [-v] raw_disk_device
DESCRIPTION
scsimodes queries the disk to determine its capacity and geometry. If
you have trouble creating a filesystem on the disk, use this command to
help you diagnose the problem. With no command line options, scsimodes
prints to standard output the drive's manufacturer and model, and the
number of bytes per sector, sectors per track, tracks per cylinder, and
other information relevant to formatting the disk.
At the SCSI command level, scsimodes executes a READ CAPACITY command,
and two MODE SENSE commands, one for page 3 (format device page), and
one for page 4 (rigid disk geometry page) of the mode sense parameters.
OPTIONS-C Report the storage capacity of the disk, in megabytes.
-v (Verbose mode) Report detailed information about the disk's
geometry. It is unlikely that you will need this level of
detail.
EXAMPLES
To see the basic formatting information for your root disk device,
become superuser and type:
scsimodes /dev/rsd0a
To determine how many megabytes of data this disk can store, type:
scsimodes -C /dev/rsd0a
SEE ALSOsd(4), disktab(5), disk(8), mkfs(8)DIAGNOSTICS
scsimodes exits with status 0 after successful execution. If it fails,
it prints a diagnostic message, and exits with status 1.
NeXT Computer, Inc. August 9, 1994 SCSIMODES(8)