Finding Out the Disk Model Number and Other Information

The diskinfo command displays useful information about a disk. Execute it specifying the disk's character device special file. For example,

/usr/sbin/diskinfo /dev/rdsk/c1t2d0
 
    SCSI describe of /dev/rdsk/c1t2d0:
                vendor: HP
            product id: C3010M1
                  type: direct access
                  size: 1956086 Kbytes
      bytes per sector: 512

SCSI disks can be further identified by the product ID field. The number displayed does not correspond to the HP model number of the disk, but rather to an "inquiry response" derived from querying the disk firmware itself using a SCSI inquiry command. The inquiry response often resembles a product number or product number family. (For example, disks C243x and C2440 all report C2430D.)

If you have a disk hardware problem and are working with an HP service engineer, reporting the inquiry response gives him or her with useful information such as firmware revision, disk mechanism, form factor, and capacity.