TACL Reference Manual

UTILS:TACL Commands and Functions

HP NonStop TACL Reference Manual—429513-018

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XBUSUP/YBUSUP Command (Super-Group Only)

Use the XBUSUP or YBUSUP command to inform the operating system that an

interprocessor bus is available for use. This command is equivalent to the BUSCMD

process. The system reports the results of an XBUSUP or YBUSUP command at the

operator console. To use the XBUSUP or YBUSUP command, you must have a group

ID of 255.

X | Y

specifies the bus (X or Y) to be brought up.

from-cpu and to-cpu

are CPU numbers in the range from 0 through 15. Each CPU number specifies the

endpoint of a segment of the designated bus. On this segment, transfers are now

permitted. Specify -1 to indicate all processors.

Example

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

entering:

15> YBUSUP 1,2

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

{ X | Y }BUSUP from-cpu , to-cpu