IBM SY44-5902-05 manual Service Functions V5R2

This option allows you to do the following tasks:

vChange the IPL attributes

vSet the IPL attributes and restart the system

vSet the IPL attributes and power off the system

Note: At the next IPL, a file rebuild might be necessary. For more information on a file rebuild, see the system operation information.

Performance data collector: Select this option from the Start a Service Tool display.

This option allows you to gather detailed information about system performance. Use the Performance data collector option only if directed by your next level of support.

To create the trace, you must specify the following:

vThe collector mode

vThe jobs or tasks from which to collect the data

vThe events to collect

After you select the Start option, the collector data is placed in temporary storage. When the collector is stopped, you can copy the data to tape by selecting the Get data option on the Work with Performance Data Collections display. To delete the data from storage, select the Delete option on the Work with Performance Data Collections display. The data is automatically erased at the next IPL.

Work with communications trace: The Work with communications trace option is available only under System Service Tools (SST). Select this option from the Start a Service Tool display.

This option allows you to start or stop a communications line trace on a configuration object.

Once you run the trace, the data can be formatted. You can view the formatted data by printing it.

You should use communications trace for the following situations:

vTo isolate errors that you cannot isolate using the communications verification procedure

vTo collect more data when the problem analysis procedures do not provide enough information on the problem

vIf you suspect a communications protocol violation problem or some other line problem

vIf you suspect line noise

vWhen the error messages indicate that there is an SNA BIND problem

Running and interpreting the communications trace requires detailed knowledge of communications protocols. Whenever possible, start the communications trace before varying on the lines. Doing this gives you the most accurate sample of your line status.

Note: Online help from the Work with Communications Trace display allows you to view a list of protocols.

32Service Functions V5R2