TACL Reference Manual

UTILS:TACL Commands and Functions

HP NonStop TACL Reference Manual—429513-018

8-32

BUSCMD Program (Super-Group Only)

Use the BUSCMD program to affect the status of the X or Y interprocessor bus (D-

series RVUs) or the X or Y ServerNet fabric (S-series RVUs) between two or more

processors. You must use a super-group user ID (255,your-id) to issue this

command.

run-option

is any of the options described in the RUN[D|V] Command on page 8-156.

{ X | Y }

specifies the bus or fabric (X or Y) whose status is to be changed.

{ DOWN | UP }

specifies whether the bus or fabric is to be made unavailable (DOWN) or available

(UP).

from-cpu

is a CPU number in the range from 0 through 15 that is one endpoint of the bus or

fabric whose operational status is to be changed. Specify -1 to indicate all

processors.

to-cpu

is a CPU number in the range from 0 through 15 that is the other endpoint of the

bus or fabric whose operational status is to be changed. Specify -1 to indicate all

processors.

Examples

1. A super-group user in a four-processor system can bring down the X bus from

processor 1 to all other processors by entering:

14> BUSCMD X, DOWN, 1, -1

THE X BUS FROM CPU 01 TO 00 HAS BEEN DOWNED.

THE X BUS FROM CPU 01 TO 01 HAS BEEN DOWNED.

THE X BUS FROM CPU 01 TO 02 HAS BEEN DOWNED.

THE X BUS FROM CPU 01 TO 03 HAS BEEN DOWNED.

2. A super-group user can bring the Y bus up from processor 1 to processor 2 by

entering:

15> BUSCMD Y, UP, 1, 2

THE Y BUS FROM CPU 01 TO 02 HAS BEEN UPPED.

BUSCMD [ / run-option [ , run-option ] ... / ]

{ X | Y } , { DOWN | UP } , from-cpu , to-cpu