Chapter 6: Troubleshooting the Server
6-2
User Guide—Sun Cobalt LX50 Server
Diagnosing System Errors
Use the following tools to help you isolate server problems:
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“POST Screen Messages” on page 6-2
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“System Utilities” on page 6-2
LEDs
You can use the diagnostic LED indications to isolate faults. See “Status LEDs” on page 6-3, “Server Main Board
Fault LEDs” on page 6-5, “System ID LEDs” on page 6-6, and “POST LED Indicators” on page 6-12.
Beep Codes
A built-in server speaker indicates failures with audible beeps. See “POST Beep Codes” on page 6-10.
POST Screen Messages
System Utilities
The following utilities are available to help troubleshoot system errors:
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Platform Confidence Test (PCT). The PCT is used to test major subsystems of the system board.
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System Setup Utility (SSU). The SSU is used to read the System Event Log (SEL).
Platform Confidence Test (PCT)
The PCT consists of up to 31 tests that test the following:
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Processor subsystem
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Memory subsystem
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Input/output subsystem
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Management subsystem
The PCT supplies three testing levels:
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Quick Test. This runs a subset of available tests and identifies processor, memory, cache and hard drives.
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Comprehensive Tests. This runs Quick Tests and identifies keyboard, mouse, ports and controllers.
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Comprehensive Tests with Looping. This runs Comprehensive Tests, continually loops through tests until
stopped, and enables identification of intermittently failing FRUs.
For information on how to run the PCT, see “Run System Diagnostic Test” on page 4-15.
System Setup Utility (SSU)
The SSU is intended to help with troubleshooting system errors, and can be used to read the System Event log (SEL).
For information on how to run the SSU, see “Using the Service Partition Menu” on page 4-9.
Содержание Cobalt LX50
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