HPUX disktab[4]






 disktab(4)                                                       disktab(4)





 NAME
      disktab - disk description file

 SYNOPSIS
      #include <disktab.h>

 DESCRIPTION
      disktab is a simple database that describes disk geometries and disk
      section characteristics.  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.
      The last name given should be a long name fully identifying the disk.

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

           cB     cB      lB cf4p+1 cf4p+1  l.  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 for section `0' (bytes) b1   num  Block size
           for section `1' (bytes) bn   num  Block size for section `n'
           (bytes) f0   num  Fragment size for section `0' (bytes)
           f1   num  Fragment size for section `1' (bytes)
           fn   num  Fragment size for section `n' (bytes) s0   num  Size of
           section `0' in sectors s1   num  Size of section `1' in sectors
           sn   num  Size of section `n' in sectors rm   num  Revolution per
           minute ty   str  Type of disk (e.g. removable, winchester)

           Example:


                hp7914:
                    :ty=winchester:ns#16:nt#7:nc#1061
                    :s0#118832
                        :b0#8192:f0#1024:rm#3600:

 DEPENDENCIES
    Series 300/400/700:
      There is only one section per disk drive.

 FILES
      /etc/disktab

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

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





 Hewlett-Packard Company            - 1 -     HP-UX Release 9.0: August 1992