Running Post; Post Overview - Sun Oracle SPARC T3-2 Service Manual

Running POST

These topics explain how to use POST as a diagnostic tool.
"POST Overview" on page 45
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"ILOM Properties that Affect POST Behavior" on page 46
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"Configure How POST Runs" on page 48
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"Run POST With Maximum Testing" on page 49
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"Interpret POST Fault Messages" on page 50
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"Clear POST-Detected Faults" on page 51
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"POST Output Quick Reference" on page 52
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POST Overview

Power-on self-test (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 (CMP, memory, and I/O subsystem).
You can also run POST as system-level hardware diagnostic tool. To do this, use the
Oracle ILOM set command to set the parameter keyswitch_state to diag.
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 listed and described in
POST Behavior" on page
If POST detects a faulty component, the component is disabled automatically. If the
system is able to run without the disabled component, it will boot when POST
completes its tests. For example, if POST detects a faulty processor core, the core will
be disabled and, once POST completes its test sequence, the system will boot and run
using the remaining cores.
Related Information
"ILOM Properties that Affect POST Behavior" on page 46
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"Run POST With Maximum Testing" on page 49
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"Interpret POST Fault Messages" on page 50
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"Clear POST-Detected Faults" on page 51
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46.
"ILOM Properties that Affect
Detecting and Managing Faults 45