diskinfo man page on HP-UX

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diskinfo(1M)							  diskinfo(1M)

       diskinfo - describe characteristics of a disk device


       The  command  determines	 whether  the  character special file named by
       character_devicefile is associated with a SCSI or  floppy  disk	drive.
       If so, summarizes the disk's characteristics.

       The 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 command recognizes the following options:

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

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

       Most  of	 the  diagnostic messages from are self-explanatory.  However,
       one diagnostic message deserves further clarification.  If the  command
       fails  to  access the lunpath corresponding to a given special file, it
       displays the following diagnostics data, which contains device  identi‐
       fication and capability information:

	    device type 127 (unknown); device is inaccessible
	    iso ecma ansi rmb dtq resv rdf

       As  of release 10.20 of HP-UX, certain IDE devices, CD-ROMs in particu‐
       lar, will respond to inquiries as if they were  SCSI  devices.	There‐
       fore,  the  text	 "SCSI describe" in the output of the command does not
       definitively mean that the disk is in fact a SCSI drive (especially  in
       the  case of CD-ROMs).  Use to check which type of INTERFACE node, SCSI
       or IDE, the device's hardware path lies beneath, in  order  to  defini‐
       tively determine a drive's interface.

       The command supports floppy and HP SCSI disk devices.

   SCSI Devices
       The  SCSI specification provides for a wide variety of device-dependent
       formats.	 For non-HP devices, 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.

       was developed by HP.

       ioscan(1M), lsdev(1M), disktab(4), disk(7).


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