test

Sun Enterprise 250 Server Owner's Guide

What to Do

Note -

Perform this procedure with the power on and the keyswitch in 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. (Optional) Select a diagnostic level.

    Four different levels of diagnostic testing are available for OBDiag; see "How to Set the Diagnostic Level for POST and OBDiag".

  3. (Optional) Select a diagnostic target.

    You can choose to run OBDiag with or without external loopback tests by using the OpenBoot PROM variable diag-targets. For more information, see "OBDiag Configuration Variables".

  4. Enter obdiag at the ok prompt: 

    ok obdiag

  5. When the OBDiag menu appears, enter the appropriate command and test name/number at the command prompt.

    For command usage and descriptions, see "OBDiag Commands".

    Figure 12-3  

    Graphic

    Note -

    For more information about OBDiag tests, see "About OpenBoot Diagnostics (OBDiag)".