Sun Microsystems Netra T5220, Руководство по обслуживанию

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1-6 Sun Netra T5220 Server Service Manual • January 2012
1.2.1 Memory Configuration and Fault Handling
A variety of features play a role in how the memory subsystem is configured and
how memory faults are handled. Understanding the underlying features helps you
identify and repair memory problems. This section describes how the memory is
configured and how the server deals with memory faults.
6. Determine if the
fault is an
environmental
fault. If the fault listed by the
showfaults
command
displays a temperature or voltage fault, then the
fault is an environmental fault. Environmental faults
can be caused by faulty FRUs (power supply, fan, or
blower), or by environmental conditions such as
when computer room ambient temperature is too
high, or the server airflow is blocked. When the
environmental condition is corrected, the fault will
automatically clear.
Section 1.4.4, “Displaying
System Faults” on
page 1-21
If the fault indicates that a fan, blower, or power
supply is bad, you can perform a hot-swap of the
FRU. You can also use the fault LEDs on the server
to identify the faulty FRU (fans, blower, and power
supplies). Section 1.3, “Using LEDs to
Identify the State of
Devices” on page 1-8
7. Determine if the
fault was detected
by PSH. If the fault message displays the following text, the
fault was detected by the Solaris Predictive
Self-Healing software:
Host detected fault
Section 1.6, “Using the
Solaris Predictive
Self-Healing Feature” on
page 1-37
If the fault is a PSH detected fault, identify the faulty
FRU from the fault message and replace the faulty
FRU. Section 1.6.2, “Clearing
PSH Detected Faults” on
page 1-40
After replacing the FRU, perform the procedure to
clear PSH detected faults.
8.
Determine if the
fault was detected
by POST. POST performs basic tests of the server components
and reports faulty FRUs. When POST detects a
faulty FRU, it logs the fault and if possible, takes the
FRU offline. POST detected FRUs display the
following text in the fault message:
FRU-name
deemed faulty and disabled
Section 1.5, “Running
POST” on page 1-27
In this case, replace the FRU and run the procedure
to clear POST detected faults. Section 1.5.5, “Clearing
POST Detected Faults” on
page 1-35
TABLE 1-1
Diagnostic Flowchart Actions (Continued)
Action
No.
Diagnostic Action Resulting Action Additional Information