Users Guide

Interpreting LED Colors and Blinking Patterns
The LEDs on the chassis provide the following status of a component:
• Steadily glowing green LEDs indicate that the component is turned on. If the green LED is blinking, it indicates a critical but routine
event, during which the unit is not operational. It does not indicate a fault.
• A blinking amber LED on a module indicates a fault on that module.
• Blue, blinking LEDs are configurable by the user and used for identification. For more information about configuration, see Configuring
LEDs to Identify Components on the Chassis.
Table 44. LED Color and Blinking Patterns
Component LED Color, Blinking Pattern Status
CMC Green, glowing steadily Turned on
Blue, glowing steadily Firmware is being uploaded
Firmware update is successful
Turned off Firmware update is in-progress
Green, dark Turned off
Blue, glowing steadily Active
Blue, blinking User-enabled module identifier
Amber, glowing steadily Not used
Amber, blinking Fault
Blue, dark Standby
Server Green, glowing steadily Turned on
Green, blinking Firmware is being uploaded
Green, dark Turned off
Blue, glowing steadily Normal
Blue, blinking User-enabled module identifier
Amber, glowing steadily Not used
Amber, blinking Fault
Blue, dark No fault
IOM (Common) Green, glowing steadily Turned on
Green, blinking Firmware is being uploaded
Green, dark Turned off
Blue, glowing steadily Normal/stack master
Blue, blinking User-enabled module identifier
Amber, glowing steadily Not used
Amber, blinking Fault
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
196 Troubleshooting and Recovery