53-1004106-15 Installation Guide
Brocade
®
X6-4 Director Hardware Installation Guide
Figure 68: Fan Assembly Numbering
Precautions Specific to Fan Assemblies
Observe the following precautions when replacing fan assemblies.
•
Each fan assembly contains two fans for a total of four fans for two installed fan assemblies. The device requires
3 fans out of 4 functioning fans for operation. If hot-swapping a fan assembly, be sure to have the replacement fan
assembly ready to install before removing a faulty fan assembly and replace it as soon as possible.
•
If a fan assembly has failed, do not remove it from the chassis unless an FRU is available for replacement. If the slot is
left empty for an extended time period, this could cause chassis air-leakage and overheating.
•
Make sure that the captive screws securing fan assemblies to the chassis are tightened. If they are not tightened, high
pressure from fan operation may unseat the fan from chassis connectors.
Fan Assembly Fault Indicators
Use one of the following methods to determine if a fan assembly is faulty:
•
Check the fan status LED.
–
Steady amber – fan assembly has a failure (full or partial).
–
Slow-flashing amber (on 2 seconds, then off 2 seconds) – fan assembly is not seated correctly or is faulty.
–
Fast-flashing amber (on ½ second, then off ½ second) – environmental range exceeded.
•
Enter
fanShow
. If the status of the fan assembly displays absent or faulty, check if the assembly is seated in the
chassis. If it is seated, the power supply could be faulty or is not receiving power for some reason.
•
Enter
sensorShow
to determine if a fan is running above average temperatures of other installed fan(s).
•
Enter
errDump
to display the system error log.
For more information on LED operation, see
Interpreting Fan Assembly LEDs
.
For output examples and additional information on Fabric OS commands, see
and the
Brocade Fabric OS Command Reference Manual
.
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