Virtual Hometerm Subsystem (VHS) Manual (G06.24+, H06.04+, J06.03+)

Using VHS

Virtual Hometerm Subsystem (VHS) Manual—429311-002

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VHS Run Syntax

The syntax for the VHS RUN command is:

RUN

specifies the TACL RUN command.

VHS

specifies the program file name of the VHS program.

NAME $process-name

specifies the name you are assigning to VHS. Specify $process-name as an

alphanumeric string of one to five characters, the first of which must be a letter.

Examples of VHS process names are $VHS1, $VHS2, or $HOME.

NOWAIT

specifies that TACL does not wait while the program runs. TACL returns a

command input prompt after sending the startup message to the new process. You

should always specify NOWAIT when you run VHS.

run-option

specifies any of the NonStop run options, separated by commas, valid for the RUN

command in TACL, as described in the TACL Reference Manual. The following

options are of particular importance for this command:

CPU cpu-number

specifies the number of the processor where the primary process of VHS is to

execute. cpu-number is an integer in the range 0 through 15. If you omit this

option, VHS runs in the same processor as TACL. (If the CPU option is omitted

and a $CMON process exists, $CMON might specify a CPU other than the one

in which the current TACL process is running. For more information about

$CMON, see the Introduction to NonStop Operations Management.

Caution. The hometerm of VHS can be a dynamic device, such as a Telnet window, but this

might cause problems when the window is terminated. It is safer to start VHS with a physical

(static) device.

[ RUN ] VHS / name $process-name, nowait [, run-option ] /

backup-cpu-number

Note. VHS is a subtype 30 process and must be named to execute properly. VHS does

not start if it is an unnamed process.