Diagnostic Tools - Lenovo System x3250 M4 Installation And Service Manual

Step 1. Is the server part of a cluster?
• No: Go to step 2.
• Yes: Shut down all failing servers that are related to the cluster. Go to step 2.
Step 2. Complete the following steps:
a. Check the power supply LEDs (see "Power-supply LEDs" on page 93).
b. Turn off the server and all external devices.
c. Check all internal and external devices for compatibility at http://www.lenovo.com/
serverproven/.
d. Check all cables and power cords.
e. Set all display controls to the middle positions.
f. Turn on all external devices.
g. Turn on the server. If the server does not start, see "Troubleshooting by symptom" on page 101.
h. Check the system-error LED on the operator information panel. If it is lit, check the light path
diagnostics LEDs (see "Diagnostic tools" on page 89).
i. Check for the following results:
• Successful completion of POST (see "POST" on page 98 for more information).
• Successful completion of startup, which is indicated by a readable display of the
operating-system desktop.
Step 3. Is there a readable image on the monitor screen?
• No: Find the failure symptom in "Troubleshooting by symptom" on page 101; if necessary, see
"Solving undetermined problems" on page 116.
• Yes: Run DSA (see "Running DSA Preboot diagnostic programs" on page 99).
– If DSA reports an error, follow the instructions in Appendix C "DSA diagnostic test results" on
page 423.
– If DSA does not report an error but you still suspect a problem, see "Solving undetermined
problems" on page 116.

Diagnostic tools

The following tools are available to help you diagnose and solve hardware-related problems.
• Event logs
The event logs list the error codes and messages that are generated when an error is detected for the
subsystems IMM2, POST, DSA, and the server baseboard management controller. See "Event logs" on
page 96 for more information.
• Integrated management module II
The Integrated Management Module II (IMM2) combines service processor functions, video controller,
and remote presence and blue-screen capture features in a single chip. The IMM2 provides advanced
service-processor control, monitoring, and alerting function. If an environmental condition exceeds a
threshold or if a system component fails, the IMM2 lights LEDs to help you diagnose the problem, records
the error in the IMM2 event log, and alerts you to the problem. Optionally, the IMM2 also provides a virtual
presence capability for remote server management capabilities. The IMM2 provides remote server
management through the following industry-standard interfaces:
– Intelligent Platform Management Protocol (IPMI) version 2.0
– Simple Network Management Protocol (SNMP) version 3
.
Chapter 4 Troubleshooting
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