Cisco UCS C4200 Installation And Service Manual page 28

Front-Panel LEDs
Table 2: Front Panel LEDs, Definition of States
LED Name
1 Node health
The numbers 1 - 4 correspond to the numbered node
bays.
2 Power supply status
3 Locator beacon
Temperature status
4
Cisco UCS C4200 Server Chassis Installation and Service Guide
26
States
• Off—No node is detected in the node bay.
• Green—The node is operating normally.
• Amber, steady—The node is in a degraded operational
state (minor fault). For example:
• Power supply redundancy is lost.
• CPUs are mismatched.
• At least one CPU is faulty.
• At least one DIMM is faulty.
• At least one drive in a RAID configuration failed.
• Amber, blinking—The node is in a critical fault state.
For example:
• Boot failure
• Fatal processor and/or bus error detected
• Over-temperature condition detected
• Green—All power supplies are operating normally.
• Amber, steady—One or more power supplies are in
a degraded operational state.
• Amber, blinking—One or more power supplies are
in a critical fault state.
Activating the locator beacon on any installed compute
node activates this chassis locator beacon.
• Off—The unit identification function is not in use.
• Blue, blinking—The unit identification function is
activated.
• Green—The system is operating at normal
temperature.
• Amber, steady—One or more temperature sensors
breached the critical threshold.
• Amber, blinking—One or more temperature sensors
breached the non-recoverable threshold.
Maintaining the Server Chassis