Oracle SPARC T8-4, Service Manual

Page: 37 / 204

Configuring POST
Configuring POST
These topics explain how to configure POST as a diagnostic tool.
■
“POST Overview” on page 37
■
“Configure POST” on page 37
POST Overview
POST is a group of PROM-based tests that run when the server is powered on or when it is
reset. POST checks the basic integrity of the critical hardware components in the server.
You can also set other Oracle ILOM properties to control various other aspects of POST
operations. For example, you can specify the events that cause POST to run, the level of testing
POST performs, and the amount of diagnostic information POST displays. These properties are
described in “Configure POST” on page 37 .
If POST detects a faulty component, the component is disabled automatically. If the server is
able to run without the disabled component, the server boots when POST completes its tests.
For example, if POST detects a faulty processor core, the core is disabled, POST completes its
test sequence, and the server boots using the remaining cores.
Related Information
■
“Configure POST” on page 37
Configure POST
1. Log in to Oracle ILOM.
See “Log In to Oracle ILOM (Service)” on page 32 .
2.
Set
/HOST/diag
to the value that corresponds to the POST configuration you want
to run.
This example sets the
/HOST/diag default_level
to
min
, which configures POST to run
according to other parameter values.
Detecting and Managing Faults 37