DBS(1prom)          RISC/os Reference Manual           DBS(1prom)



NAME
     dbs - display board status

SYNOPSIS
     dbs

AVAILABILITY
     This command is available only on RC6380 systems.

DESCRIPTION
     dbs is a PROM monitor or standalone shell (sash(1M)) command
     that displays the current status of boards in the system and
     how the PROM uses them.  An init(1prom) command or a power
     on initialization of the PROM also displays the current
     status.

     The following information appears on this display:

     SLOT          Physical slot number containing board

     SBC REV       Revision number (in decimal) of the System Bus
                   Control chip

     HDWR TYPE     Type of hardware board:

                   cpu       Central processing unit. The
                             description column indicates the
                             logical number assigned to the CPU
                             by the PROM program. The description
                             also indicates if the CPU is a
                             snoopy type capable of snoop opera-
                             tions (see snoop(1prom)).

                   ioc       Input/output controller

                   mem       Memory board

     CPU REV       Hexadecimal value contained in bits 0 through
                   7 of the CPU PRID register

     FPA REV       Hexadecimal value contained in bits 0 through
                   7 of the Floating Point Units Revision regis-
                   ter

     SOFT STATE    Logical state of the CPUs:

                   on        Executable (master CPU only)

                   off       CPU is logically turned off

                   idle      CPU is a slave, on, not busy, not
                             hung, and capable of receiving



                        Printed 11/19/92                   Page 1

DBS(1prom)          RISC/os Reference Manual           DBS(1prom)



                             commands

                   hung      Currently executing software has not
                             returned the processor to its idle
                             loop or has checked in at reset time
                             but cannot be found

                   busy      Processor is currently busy execut-
                             ing software that does not allow it
                             to communicate with other processors

     SOFT TYPE     Logical type of the CPU. This value can be
                   either master or slave:

                   master    CPU that controls the operation of
                             other processors in the system

                   slave     CPU that acts on commands from the
                             master CPU

     DESCRIPTION   Further information about the boards

     Information lines at the bottom of the display provide addi-
     tional information such as the current boot mode.

SEE ALSO
     prom(1prom), sash(1M), snoop(1prom)

























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