component status. The Lenovo XClarity Controller provides various interfaces to systems management
software and to system administrators and users to enable remote management and control of a server.
The Lenovo XClarity Controller monitors all components of the server and posts events in the Lenovo
XClarity Controller event log.
Figure 72. Lenovo XClarity Controller event log
For more information about accessing the Lenovo XClarity Controller event log, see:
http://sysmgt.lenovofiles.com/help/topic/com.lenovo.systems.management.xcc.doc/event_log.html
Light path diagnostics
Use this information as an overview of light path diagnostics.
Light path diagnostics is a system of LEDs above the control panel and on various internal components of
the compute node. When an error occurs, LEDs can be lit throughout the compute node to help identify the
source of the error.
Viewing the light path diagnostics LEDs
Use this information to locate and identify the light path diagnostics LEDs.
Before you work inside the compute node to view the light path diagnostics LEDs, read the safety
information, which is available at “Safety” on page iii and the “Installation Guidelines” on page 21.
If an error occurs, view the light path diagnostics LEDs in the following order:
Chapter 4. Problem determination 97
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