mcst(7)              INTERACTIVE UNIX System              mcst(7)



          NAME
               mcst - low-level controller module

          DESCRIPTION
               The mcst module provides low-level interface routines
               between the High Performance Disk Driver (see hpdd(7)) and
               controllers using IBM/ST506 interface in a Micro Channel-
               compatible machine.  The driver can be configured for disk
               support for one or two controller boards if the machine sup-
               ports a multiple ST506 controller configuration. However, it
               can be configured to run with other non-ST506 controller
               boards.  The low-level code determines if the controller is,
               in fact, present at the configured address (see disk(7) and
               tape(7)) and what devices are attached to it.

               For information on configuring a kernel to include the mcst
               module, refer to the ``INTERACTIVE UNIX Operating System
               Maintenance Procedures.''

             Board Configuration
               The reference diskette that accompanies the Micro Channel
               machine should be used for standard configurations of the
               machine.  If a machine is configured with an IBM/ST506 and
               an IBM/ESDI (see mcesdi(7)) interface controller, both con-
               trollers must share the same interrupt level.

          SEE ALSO
               disk(7), hpdd(7), mcesdi(7), tape(7),
               ``INTERACTIVE UNIX Operating System Maintenance Procedures''
               in the INTERACTIVE UNIX Operating System Guide.

          ADDED VALUE
               This entry, supplied by INTERACTIVE Systems Corporation, is
               an extension of UNIX System V.





















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