unixdev.net


Switch to SpeakEasy.net DSL

The Modular Manual Browser

Home Page
Manual: (SunOS-4.1.3)
Page:
Section:
Apropos / Subsearch:
optional field

DKCTL(8)                    System Manager's Manual                   DKCTL(8)



NAME
       dkctl - control special disk operations

SYNOPSIS
       /usr/etc/dkctl disk command

DESCRIPTION
       dkctl is used to enable or disable special disk operations. In particu-
       lar the enabling or disabling of verified writes (write check function-
       ality) is controlled by this program.

       The  disk  specification  here  is  a disk name of the form /dev/rxxnp,
       where xx is the controller device abbreviation (xy, sd, etc.), n is the
       disk  number,  and  p  is the partition to which the operation applies.
       The partition specification is simply the letter used to identify  that
       partition in the standard UNIX system nomenclature.

SUPPORTED COMMANDS
       wchk   This  function  enables write checking for disks that support it
              for the named disk partition. This means that for partitions  of
              disks with this feature enabled, all writes are verified to have
              been correctly written on the disk.  This  operation  emphasizes
              data reliability over performance, although for each implementa-
              tion, the fastest reasonable method will be used  (i.e.,  imple-
              mented in hardware, if possible).

       -wchk  This  disables write check functionality for the named disk par-
              tition.

BUGS
       Use of the dkctl command requires super-user permissions.

       There are many other features this program could control,  and  may  in
       the future.

FILES
       /dev/rxxnp

SEE ALSO
       dkio(4S), sd(4S), xy(4S)



                                 17 June 1988                         DKCTL(8)