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 disktab(4)							  disktab(4)




 NAME
      disktab - disk description file

 SYNOPSIS
      #include<disktab.h>

 DESCRIPTION
      disktab is a simple database that describes disk geometries.  Entries
      in disktab consist of a number of colon-separated fields.	 The first
      entry for each disk gives the names by which the disk is known,
      separated by vertical bar (|) characters.

      This file is provided for backward compatibility with previous HP-UX
      releases only.  Its use is discouraged.

      The following list indicates the normal values stored for each disk
      entry.  Sectors are of size DEV_BSIZE, defined in <sys/param.h>.

	   Name	  Type	 Description
	   ___________________________________________________
	    ns	  num	 Number of sectors per track
	    nt	  num	 Number of tracks per cylinder
	    nc	  num	 Total number of cylinders on the disk
	    b0	  num	 Block size (bytes)
	    f0	  num	 Fragment size (bytes)
	    s0	  num	 Size of disk in sectors
	    rm	  num	 Revolution per minute

      Example:

	   HP_7914:
	       :132.1 MB:ns#16:nt#7:nc#1152:\
	       :s0#129024:b0#8192:f0#1024:\
	       :se#256:rm#3600:

 AUTHOR
      disktab was developed by HP and the University of California,
      Berkeley.

 FILES
      /etc/disktab

 SEE ALSO
      newfs(1M), getdiskbyname(3C).










 Hewlett-Packard Company	    - 1 -   HP-UX Release 11i: November 2000