DISKTAB(5-SysV)     RISC/os Reference Manual      DISKTAB(5-SysV)



NAME
     disktab - disk description file

SYNOPSIS
     #include <disktab.h>

DESCRIPTION
     disktab is a simple date base which describes disk
     geometries and disk partition characteristics.  Entries in
     disktab consist of a number of `:' separated fields.  The
     first entry for each disk gives the names which are known
     for the disk, separated by `|' 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.

     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
     ba    num   Block size for partition `a' (bytes)
     bd    num   Block size for partition `d' (bytes)
     be    num   Block size for partition `e' (bytes)
     bf    num   Block size for partition `f' (bytes)
     bg    num   Block size for partition `g' (bytes)
     bh    num   Block size for partition `h' (bytes)
     fa    num   Fragment size for partition `a' (bytes)
     fd    num   Fragment size for partition `d' (bytes)
     fe    num   Fragment size for partition `e' (bytes)
     ff    num   Fragment size for partition `f' (bytes)
     fg    num   Fragment size for partition `g' (bytes)
     fh    num   Fragment size for partition `h' (bytes)
     pa    num   Size of partition `a' in sectors
     pb    num   Size of partition `b' in sectors
     pc    num   Size of partition `c' in sectors
     pd    num   Size of partition `d' in sectors
     pe    num   Size of partition `e' in sectors
     pf    num   Size of partition `f' in sectors
     pg    num   Size of partition `g' in sectors
     ph    num   Size of partition `h' in sectors
     se    num   Sector size in bytes
     sf    bool  supports bad144-style bad sector forwarding
     so    bool  partition offsets in sectors
     ty    str   Type of disk (e.g. removable, winchester)

     disktab entries may be automatically generated with the
     diskpart program.

FILES
     /etc/disktab




                         Printed 1/15/91                   Page 1

DISKTAB(5-SysV)     RISC/os Reference Manual      DISKTAB(5-SysV)



SEE ALSO
     newfs(1FFS)

BUGS
     This file shouldn't exist, the information should be stored
     on each disk pack.

















































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