TACL Reference Manual

UTILS:TACL Commands and Functions

HP NonStop TACL Reference Manual—429513-018

8-92

LIGHTS Program (Super-Group Only)

Use the LIGHTS program to control the processor panel lights (also known as the

switch-register display). You must use a super-group user ID (255,your-id) to issue

this command.

This command is not supported on NonStop S-series systems after the G06.04 RVU.

enables the display of processor usage in the processor panel lights. ON is the

default if you do not specify any of these parameters in the command that runs the

LIGHTS program.

OFF

stops the lights display and turns off all the processor panel lights.

SMOOTH [ num ]

reduces the variance in the processor usage display. It causes the lights to show

processor usage over the previous num seconds, where num is a value between 1

and 60, inclusive. The default value of num is 10. Although the processor usage is

averaged over num seconds, the lights display is refreshed every second. LIGHTS

SMOOTH also turns on the processor lights if they are off.

You can include a sys-option, and the ALL and BEAT parameters, only when the

display is enabled (that is, when LIGHTS ON or LIGHTS SMOOTH is in effect).

sys-option

is any of these three:

DISPATCHES

flashes processor light 13 to indicate passage of 100 dispatches. (After 95

dispatches, light 13 is lit for 5 dispatches.)

SYSPROCS

turns on processor light 14 whenever a system process is running.

PAGING

turns on processor light 15 whenever a page fault is being processed (that is,

the memory manager is waiting for a page transfer from a disk process).

LIGHTS [ ON | OFF | SMOOTH { num }]

[ [ ‚ sys-option ] | [‚ ALL ] ]

[ , BEAT ]