NAME

diskinfo − describe characteristics of a disk device

SYNOPSIS

/usr/sbin/diskinfo [-b|-v] character_devicefile

DESCRIPTION

The diskinfo command determines whether the character special file named by character_devicefile is associated with a SCSI, CS /80, or Subset/80 disk drive. If so, diskinfo summarizes the disk’s characteristics. 

The diskinfo command displays information about the following characteristics of disk drives:

Vendor name Manufacturer of the drive ( SCSI only)

Product ID Product identification number or ASCII name

Type CS /80 or SCSI classification for the device

Disk Size of disk specified in bytes

Sector Specified as bytes per sector

Both the size of disk and bytes per sector represent formatted media. 

Options

The diskinfo command recognizes the following options:

-b Return the size of the disk in 1024-byte sectors. 

-v Display a verbose summary of all of the information available from the device. (Since the information returned by CS /80 drives and SCSI drives differs, the associated descriptions also differ.) 

• CS /80 devices return the following:

Device name
Number of bytes/sector
Geometry information
Interleave
Type of device
Timing information

• SCSI disk devices return the following:

Vendor and product
ID
Device type
Size (in bytes and in logical blocks)
Bytes per sector
Revision level
SCSI 
conformance level data

DEPENDENCIES

General

The diskinfo command supports only CS /80, subset/80, and HP SCSI disk devices. 

SCSI Devices

The SCSI specification provides for a wide variety of device-dependent formats.  For non- HP devices, diskinfo may be unable to interpret all of the data returned by the device.  Refer to the drive operating manual accompanying the unit for more information. 

AUTHOR

diskinfo was developed by HP. 

SEE ALSO

lsdev(1M), disktab(4), disk(7). 

Hewlett-Packard Company  —  HP-UX Release 10.20:  July 1996