GDSX Manual

Operations and Support
Extended General Device Support (GDSX) Manual–134303
3-13
Setting Configuration Parameters
Setting Configuration Parameters
Other than assigning values to configuration parameters within USCODE, there are
three ways to set the configuration parameters. (For information on assigning values to
configuration parameters within USCODE, see “GDSX Configuration Parameters” on
page 2-42.)
1. Before running GDSX, use TACL PARAM commands to assign values to external
parameter names. This method may be used with static or dynamic parameters. Use
the external parameter names listed in the first column of Tables 2-2 and 2-3.
For example, to specify the restart time delay, enter the following command at a
TACL prompt:
> PARAM RESTARTTIME 10000
Or, to turn on the trace facility (give bit 11 of DEBUGFLAGS a value of 16), enter
the following command at a TACL prompt:
> PARAM DEBUGFLAGS 16
To turn on the trace facility (give bit 11 of DEBUGFLAGS a value of 16) and also
pool checking (give bit 14 of DEBUGFLAGS a value of 2), set DEBUGFLAGS
equal to 18 (16 + 2):
> PARAM DEBUGFLAGS 18
2. Use an SPI management application program to change parameter values. This
method can be used only with dynamic parameters.
3. Use SCF to change parameter values. This method may be used only with dynamic
parameters.
For example, to turn off the trace facility, enter the following SCF command:
-> TRACE PROCESS $GDSX, STOP
Methods 2 and 3 are of equal priority; they both override settings made with method 1.
Management With SCF
There are two management interfaces:
•
Interactive, conversational input by means of the Subsystem Control Facility (SCF)
•
Management programming control by means of a user-written management
application program that uses the Subsystem Programmatic Interface (SPI)
The interactive SCF interface includes commands used to configure and manage SU,
LINE, and GDSX objects; control the tracing facility; and display statistics on object
status and resource allocation. For general information about SCF functions and
command formats, see the Subsystem Control Facility (SCF) Reference Manual. For
Caution. The PARAM DEBUGFLAGS command also turns off all the other flags in the bit-
encoded DEBUGFLAGS configuration parameter. See “DEBUGFLAGS” on page 2-51.