Users Guide

Table 44. LED Color and Blinking Patterns (continued)
Component LED Color, Blinking Pattern Status
Blue, dark No fault/stack slave
IOM (Pass through) Green, glowing steadily Turned on
Green, blinking Not used
Green, dark Powered off
Blue, glowing steadily Normal
Blue, blinking User-enabled module identifier
Amber, glowing steadily Not used
Amber, blinking Fault
Blue, dark No fault
Blower Green, glowing steadily Fan working
Green, blinking Not used
Green, dark Turned off
Amber, glowing steadily Fan type not recognized, update the CMC firmware
Amber, blinking Fan fault; tachometer out of range
Amber, dark Not used
PSU (Oval) Green, glowing steadily AC OK
(Oval) Green, blinking Not used
(Oval) Green, dark AC Not OK
Amber, glowing steadily Not used
Amber, blinking Fault
Amber, dark No fault
(Circle) Green, glowing steadily DC OK
(Circle) Green, dark DC Not OK
Enclosure Blue When the host server is identifying the enclosure
Amber Turned on or Reset, fault state
Troubleshooting Non-responsive CMC
If you cannot log in to CMC using any of the interfaces (the web interface, Telnet, SSH, remote RACADM, or serial), you can verify the
CMC functionality observing the LEDs on CMC.
NOTE: It is not possible to log in to the standby CMC using a serial console.
Observing LEDs to Isolate the Problem
There are two LEDs on the left of the card:
• Upper-left LED — Indicates power status. If it is not ON:
○ Verify that you have AC present to at least one power supply.
○ Verify that the CMC card is seated properly. You can release or pull the ejector handle, remove the CMC, reinstall the CMC making
sure that the board is inserted all the way and the latch closes correctly.
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Troubleshooting and Recovery