Sun Microsystems Fire 880, Руководство пользователя

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Chapter 1 System Overview 21
Status LEDs
The system provides easily accessible light-emitting diode (LED) indicators to
provide a visual indication of system and component status. LEDs are located on the
system front panel, internal disk bays, power supplies, fan tray assemblies, and near
each CPU/Memory board and PCI slot. Status LEDs eliminate guesswork and
simplify problem diagnosis for enhanced serviceability.
Front panel status LEDs are described in “About the Status and Control Panel” on
page 10. For details on the system internal LEDs, see Chapter 8.
Four Levels of Diagnostics
For enhanced serviceability and availability, the system provides four different levels
of diagnostic testing:
■
Power-on self-test (POST)
■
OpenBoot Diagnostics
■
Sun Validation Test Suite (SunVTS™)
■
Sun Management Center system monitoring and management software (formerly
known as Sun Enterprise SyMON™ software)
POST and OpenBoot Diagnostics are firmware-resident diagnostics that can run
even if the server is unable to boot the operating system. POST diagnostics provide
a quick but thorough check of the most basic hardware functions of the system.
OpenBoot Diagnostics provide a more comprehensive test of the system, including
external interfaces.
Application-level diagnostics, such as SunVTS and Sun Management Center
software, offer additional troubleshooting capabilities once the operating system is
running. Like OpenBoot Diagnostics, SunVTS software provides a comprehensive
test of the system, including its external interfaces. SunVTS software also lets you
run tests remotely over a network connection or from an RSC console. Sun
Management Center software provides a variety of continuous system monitoring
capabilities. It enables you to monitor system hardware status and operating system
performance of your server. For more information about diagnostic tools, see the
Sun Fire 880 Server Service Manual .