Lenovo System x3630 M4, Installation And Service Manual

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rich set of diagnostic tests of the major components of the server. DSA Preboot collects the following
information about the server:
– Drive health information
– Event logs for ServeRAID controllers and service processors
– Installed hardware, including PCI and USB information
– Light path diagnostics status
– Microprocessor, input/out hub, and UEFI error logs
– Network interfaces and settings
– RAID controller configuration
– Service processor (integrated management module) status and configuration
– System configuration
– Vital product data, firmware, and UEFI configuration
DSA Preboot also provides diagnostics for the following system components (when they are installed):
1. Network adapter
2. IMM 12C bus
3. Lightpath diagnostics panel
4. Memory modules
5. Microprocessors
6. Optical devices (CD or DVD)
7. SAS or SATA drives
8. Tape drives (SCSI)
See “Running the DSA Preboot diagnostic programs” on page 139 for more information on running the
DSA Preboot program on the server.
• Troubleshooting by symptom
These tables list problem symptoms and actions to correct the problems. See “Troubleshooting by
symptom” on page 141 for more information.
Light path diagnostics
Light path diagnostics is a system of LEDs on various external and internal components of the server
that leads you to the failed component.
When an error occurs, LEDs are lit throughout the server. By viewing the LEDs in a particular order, you
can often identify the source of the error.
When LEDs are lit to indicate an error, they remain lit when the server is turned off, provided that the
server is still connected to power and the power supply is operating correctly and the top cover is closed
and latched correctly.
Before you work inside the server to view light path diagnostics LEDs, read the safety information that begins
in “Safety” on page v and “Handling static-sensitive devices” on page 38.
If an error occurs, view the light path diagnostics LEDs in the following order:
1. Look at the operator information panel on the front of the server.
• If the Log LED is lit, it indicates that information about a suboptimal condition in the server is available
in the IMM system-event log or in the system-event log.
Chapter 4
.
Troubleshooting
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