Managing Faults
19
■
“SunVTS Software Packages” on page 41
■
“Useful SunVTS Tests” on page 42
■
SPARC Enterprise T5440 Server Administration Guide
POST Fault Management Overview
Power-on self-test (POST) is a group of PROM-based tests that run when the server is
powered on or reset. POST checks the basic integrity of the critical hardware
components in the server (CMP, memory, and I/O subsystem).
POST tests critical hardware components to verify functionality before the system
boots and accesses software. If POST detects a faulty component, the component is
disabled automatically, preventing faulty hardware from potentially harming any
software. If the system is capable of running without the disabled component, the
system will boot when POST is complete. For example, if one of the processor cores
is deemed faulty by POST, the core will be disabled. The system will boot and run
using the remaining cores.
You can use POST as an initial diagnostic tool for the system hardware. In this case,
configure POST to run in maximum mode (
diag_mode=service
,
setkeyswitch=
diag
,
diag_level=max
) for thorough test coverage and verbose output.
Summary of Contents for SPARC Enterprise T5440 Server
Page 1: ......
Page 2: ......
Page 6: ......
Page 26: ...xxiv SPARC Enterprise T5440 Server Service Manual July 2009 ...
Page 84: ...58 SPARC Enterprise T5440 Server Service Manual July 2009 ...
Page 180: ...154 SPARC Enterprise T5440 Server Service Manual July 2009 ...
Page 192: ...166 SPARC Enterprise T5440 Server Service Manual July 2009 ...
Page 198: ...172 SPARC Enterprise T5440 Server Service Manual July 2009 ...
Page 212: ...186 SPARC Enterprise T5440 Server Service Manual July 2009 ...
Page 213: ......
Page 214: ......