Users Guide

Table Of Contents
Table 33. LED Color and Blinking Patterns
Component LED Color, Blinking Pattern Status
Blue, blinking PCI identification is in progress.
Amber, blinking Fault
Storage sled Amber, blinking Fault
Solid Blue No fault
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, obtaining recovery information using the DB-9 serial port, or
recovering the CMC firmware image.
Observing LEDs to Isolate the Problem
The CMC has an LED which changes color to indicate:
Table 34. LED color indicators
Color Description
Blue Normal operation
Blue, blinking ID (0.5 second on, 0.5 second off)
Amber Chassis fault summary
Amber, blinking Chassis fault with concurrent ID
Obtain Recovery Information from DB-9 Serial Port
If the CMC LED is amber, recovery information is available from the DB-9 serial port located on the front of CMC.
To obtain recovery information:
1. Install a NULL modem cable between a CMC system and a client system.
2. Open a terminal emulator of your choice (such as HyperTerminal or Minicom). Enter the following specification when
prompted: 8 bits, no parity, no flow control, baud rate 115200.
A core memory failure displays an error message every 5 seconds.
3. Press the <Enter> key.
If a recovery prompt appears, additional information is available. The prompt indicates the CMC slot number and failure type.
To display failure reason and syntax for a few commands, type recover, and then press <Enter>.
Sample prompts:
recover1[self test] CMC self test failure
recover1[Bad FW images] CMC has corrupted images
If the prompt indicates a self test failure, there are no serviceable components on CMC. CMC is bad and must be
returned to Dell.
If the prompt indicates Bad FW Images, complete tasks in Recovering Firmware Image1.
Recovering Firmware Image
CMC enters recover mode when a normal CMC operating boot is not possible. In recover mode, a small subset of commands are
available that allow you to reprogram the flash devices by uploading the firmware update file, fx2_cmc.bin. This is the same
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Troubleshooting and recovery