• If the fault LED is lit, it indicates that an error has occurred; view the light path diagnostics panel and
LEDs to isolate the failing component.
2. To view the light path diagnostics LEDs, use one of the following procedures:
• You can view the LEDs through the CMM
led
command, the CMM web interface, or the Flex System
Manager management software.
– For more information about the CMM
led
command, see the "Flex System
– From the CMM web interface, select
Compute Nodes
from the
Chassis Management
menu.
For more information, see the the "Flex System Chassis Management Module: User's Guide"
at http://pic.dhe.ibm.com/infocenter/flexsys/information/topic/com.lenovo.acc.cmm.doc/
cmm_user_ guide.html. All fields and options are described in the CMM web interface online help.
– For more information about Flex System Manager management software,
• If you are in the same location as the compute node, you can complete the following steps:
a. Remove the compute node from the Flex System chassis (see “Removing a compute node from a
chassis” on page 639 for instructions).
b. Carefully lay the compute node on a flat, static-protective surface.
c. Open the compute node cover (see “Removing the compute node cover” on page 643 for
instructions).
d. Remove the air baffles that are installed over the DIMM connectors.
e. Press and hold the power button. When you press the power button, LEDs on the light path
diagnostics panel and the system board will be lit if there are any hardware-related issues.
Note:
The power source for light path diagnostics is designed to last only a short time. If you
press the power button and the light path diagnostics LED lights, light path diagnostics is
charged to light the LEDs.
The following illustration shows the LEDs on the light path diagnostics panel.
The following illustration shows the locations of the light path diagnostics LEDs on the system board.
62
Flex System x220 Compute Node Installation and Service Guide
Содержание Flex System x220
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