Sun Microsystems Fire V240, Руководство администратора

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Chapter 6 Diagnostics 57
POST detects most system faults and is located in the motherboard OpenBoot™
PROM. POST can be set to run by the OpenBoot program at power up by setting two
environment variables, the
diag-switch?
and the
diag-level
flag, which are
stored on the system configuration card.
POST runs automatically when the system power is applied, or following an
automatic system reset, if all of the following conditions apply:
■
diag-switch?
is set to
true
(default is
false
)
■
diag-level
is set to
min
,
max
or
menus
(default is
min
)
■
post-trigger
matches the class of reset (default is
power-on-reset
)
If
diag-level
is set to
min
or
max
, POST performs an abbreviated or extended test,
respectively.
If
diag-level
is set to
menus
, a menu of all the tests executed at power up is
displayed.
POST diagnostic and error message reports are displayed on a console.
▼
To Start POST Diagnostics
1. Go to the
OK
prompt.
2. Type:
3. Type:
Where value is either min or max depending on the quantity of diagnostic
information you want to see.
4. Type:
The system runs POST diagnostics if
post-trigger
is set to user-reset. Status and
error messages are displayed in the console window. If POST detects an error, it
displays an error message describing the failure.
ok setenv diag-switch? true
ok setenv diag-level
value
ok reset-all