Sun Enterprise 220R Server Service Manual

7.7.1 Before You Begin

Three different levels of diagnostic testing are available for power-on self-test (POST) and OpenBoot Diagnostics (OBDiag): max (maximum 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 diag-level.

The default setting for diag-level is min.

If your server is set up without a local console or terminal, you will need to set up a monitor, console, or terminal before setting the diagnostic level. See "2.10 About Communicating With the Server".