Overview Of Fan Trays - Cisco Nexus 7702 Hardware Installation Manual

Overview of Fan Trays

Note A combination of 3-kW DC and 3.5-kW HVAC/HVDC power supplies can be used.
Overview of Fan Trays
The Cisco Nexus 7702 switch has one fan tray with three variable speed fans. The fan tray can be removed
and replaced while the switch is operating without presenting an electrical hazard or damage to the switch.
The switch can operate without the fan tray for up to two minutes. If a fan tray is not installed within that
time, the switch will automatically shutdown.
When one of the three fans in the fan tray fails, the remaining two fans run at a higher speed to compensate
Note
for the failed fan and keep the switch operating.
If one or more fans fail within a fan tray, the Fan Status LED turns red. A fan failure could lead to
Caution
temperature alarms if not corrected immediately.
The fan status is continuously monitored by the software. In case of a fan failure, the following actions occur:
• System messages are displayed.
• Call Home alerts are sent (if configured). For more information, refer
• SNMP notifications are sent (if configured). For more information, refer
Displaying the Status for the Fan Trays
To display the status for the , use the show environment fan command as shown in the following example.
Enter the show environment fan command.
Cisco Nexus 7702 Hardware Installation Guide
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a Destination Profile .
.
Managing the Switch
Associating an Alert Group with
Enabling SNMP Notifications.