Sun Microsystems Enterprise 250, Owner'S Manual, Page: 284 / 369

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” on
page 49.
What to Do
Note - 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” on
page 242 for information about each setting.
250
Sun Enterprise 250 Server Owner’s Guide
♦
Revision A, June 1998