Cisco UCS C240 M4 Installation And Service Manual page 43
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Chapter 3
Maintaining the Server
Table 3-1
Front Panel LEDs, Definitions of States
LED Name
1
Hard drive fault
Note: If your controller is a Cisco
UCS RAID SAS 9300-8i or
9300-8e HBA, see
Cisco UCS
SAS 9300-8i and 9300-8e HBA
Considerations, page C-3
differing LED behavior.
2
Hard drive activity
3
Power button/LED
4
Unit Identification
5
System status
6
Fan status
OL-32474-01
State
•
Off—The hard drive is operating properly.
•
Amber—Drive fault detected.
•
Amber, blinking—The device is rebuilding.
Amber, blinking with one-second interval—Drive locate function activated.
•
for
Off—There is no hard drive in the hard drive tray (no access, no fault).
•
Green—The hard drive is ready.
•
Green, blinking—The hard drive is reading or writing data.
•
•
Off—There is no AC power to the server.
•
Amber—The server is in standby power mode. Power is supplied only to the
Cisco IMC and some motherboard functions.
•
Green—The server is in main power mode. Power is supplied to all server
components.
•
Off—The unit identification function is not in use.
•
Blue—The unit identification function is activated.
•
Green—The server is running in a normal operating condition.
Green, blinking—The server is performing system initialization and memory
•
check.
•
Amber, steady—The server is in a degraded operational state. 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 server is in a critical fault state. For example:
•
Boot failed.
–
–
Fatal CPU and/or bus error is detected.
–
Server is in an over-temperature condition.
•
Green—All fan modules are operating properly.
•
Amber, steady—One or more fan modules breached the critical threshold.
Amber, blinking—One or more fan modules breached the non-recoverable
•
threshold.
Cisco UCS C240 M4 Server Installation and Service Guide
Status LEDs and Buttons
3-3
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