How to Set the Diagnostic Level for POST and OBDiag

Before You Begin

Four different levels of diagnostic testing are available for power-on self-test (POST) and OpenBoot Diagnostics (OBDiag): max (maximum level), med (medium level), min (minimum level), and off (no testing). The system runs the appropriate level of diagnostics based on the setting of the OpenBoot PROM variable called diag-level.

The default setting for diag-level is min.

If your server is set up without a local console, you'll need to set up a monitor or console before setting the diagnostic level. See "About Setting Up a Console".

What to Do

Perform this procedure with the power on and the keyswitch set to the Power-on position.

1. With the keyswitch in the Power-on position, press the Break key on your alphanumeric terminal's keyboard, or enter the Stop-a sequence on a Sun keyboard.

   To enter the Stop-a sequence, press the Stop key and the a key simultaneously. The ok prompt is displayed.

2. To set the diag-level variable, enter the following:

   ---

   ok setenv diag-level 
   value
   

   ---

The value can be off, min, med, or max. See "OBDiag Configuration Variables" for information about each setting.