TABLE 4
Non-port-side LED patterns during normal operation (continued)
LED name
LED color
Status of hardware
Recommended action
Blinking green
One of the following may have
occurred:
•
Mismatched airflow on
power supply and fan
assembly.
•
One or more of the fans
in the fan assembly has
failed or the power
supply has failed.
•
The power cord has been
unplugged.
Take one of the following actions:
•
Replace power supply
and fan assembly with a
power supply and fan
assembly that has correct
airflow direction.
•
Replace the power
supply and fan assembly.
•
Check the power plug.
Power supply status (one LED
[green] per power supply) (VDX
6740T)
Off (no light)
Power supply is not receiving power
or is off.
Verify the power supply is on and
seated and the power cord is
connected to a functioning power
source.
Steady green
Power supply is operating normally.
Also, airflow mismatch or fault may
have been detected.
No action required.
Check messages or use the
show
environment
command to check
the state of the power supply.
Blinking green
Power supply is faulty.
Try the following:
•
Check the power cable
connection.
•
Verify that the power
supply is powered on.
•
Replace the power
supply.
Fan status (one bicolor LED [green
and amber] per fan assembly) (VDX
6740T)
Off (no light)
Fan assembly is not receiving
power.
Try the following:
•
Verify the fan assembly is
seated correctly.
•
Verify the device is
powered on.
Steady green
Fan assembly is operating normally. No action required.
Steady amber (for more than 5
seconds)
Fan fault for one of the following
reasons:
•
Mismatched airflow on
fan assemblies.
•
One or more of the fans
in the fan assembly has
failed.
•
The fan assembly was
disabled by the user.
NOTE
When the device is first
powered on, the fan
status LED will show
amber until POST has
completed.
Try the following:
•
Verify that the airflow
symbol and part number
on the replacement fan
matches the fans in the
chassis. Replace if
necessary.
•
Replace the fan
assembly.
•
Verify the fan assembly is
enabled (use the
show
environment fan
command). Re-enable if
necessary.
LED activity interpretation
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