Sun Microsystems Netra 1290, Administration Manual

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43
C H A P T E R
4
Troubleshooting
This chapter describes how to troubleshoot the server and includes the following
topics:
■
“Basic Troubleshooting” on page 43
■
“Interpreting LEDs” on page 45
■
“System Faults” on page 49
■
“Recovering a Hung System” on page 54
■
“Power Supply Troubleshooting” on page 56
■
“CPU/Memory Troubleshooting” on page 57
Basic Troubleshooting
In a functioning Netra 1290 server without any known problems, the system should
not display any error conditions. For example:
■
System fault LED should not be lit.
■
Fault LEDs on all field-replaceable units (FRUs) should not be lit.
■
syslog
file should not display error messages.
■
Administrative console should not display error messages.
■
System controller logs should not display any error messages.
■
Solaris Operating System (Solaris OS) message files should not indicate any
additional errors.
If a problem or failure occurs, the system controller does the following:
■
Attempts to determine what hardware is faulty.
■
Takes steps to prevent that hardware from being used until it has been replaced.
Some of the specific actions the system controller takes include: