diskinfo - describe characteristics of a disk device
/usr/sbin/diskinfo [-b|-v] character_devicefile
The diskinfo command determines whether the character special file
named by character_devicefile is associated with a SCSI or floppy 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 floppy 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.
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. For floppy drives, this
option has no effect.
SCSI disk devices return the following:
Vendor and product ID
Size (in bytes and in logical blocks)
Bytes per sector
SCSI conformance level data
As of release 10.20 of HP-UX, certain IDE devices, CD-ROMs in
particular, will respond to diskinfo inquiries as if they were SCSI
devices. Therefore, the text "SCSI describe" in the output of the
diskinfo command does not definitively mean that the disk is in fact a
SCSI drive (especially in the case of CD-ROMs). Use ioscan(1M),
ioscan -fn, and check which type of INTERFACE node, SCSI or IDE, the
device's hardware path lies beneath, in order to definitively
determine a drive's interface.
Hewlett-Packard Company - 1 - HP-UX Release 11i: November 2000
The diskinfo command supports floppy and HP SCSI disk 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.
diskinfo was developed by HP.
lsdev(1M), ioscan(1M), disktab(4), disk(7).
Hewlett-Packard Company - 2 - HP-UX Release 11i: November 2000