Sun Microsystems 817-4054-15, Servise Manual

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Chapter 1 Fault Isolation 1-5
1.2 Basic Troubleshooting
In a functioning Sun Fire E2900 system 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. See the
Troubleshooting chapter of the system administration manual for more
information.
■
Solaris Operating System (Solaris OS) message files should not indicate any
additional errors. See the Troubleshooting chapter of the system administration
manual for this product for more information on the various message files.
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:
■
May cause the hardware to pause while software analyzes and records the event
error
■
Determines whether or not the error is recoverable and if the system needs to be
reset
■
When possible, causes the faulty FRU to provide an LED indication of a fault in
addition to populating the system console messages with further details
■
Determines if dynamic deconfiguration and reconfiguration is applicable
If the system cannot diagnose the problem, see the following sections for
troubleshooting information.