User's Manual

410 Troubleshooting and Recovery
Troubleshooting a Non-responsive CMC
NOTE: It is not possible to log in to the standby CMC using a serial console.
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 by observing the LEDs on CMC, obtaining
recovery information using the DB-9 serial port, or recovering the
CMC firmware image.
Fan Green, glowing steadily Fan working
Green, blinking Not used
Green, dark Powered off
Amber, glowing steadily Fan type not recognized, update
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
Table 12-13. LED Color and Blinking Patterns
(continued)
Component LED Color, Blinking Pattern Meaning