Full Redundancy
Mode
Input Source
Redundancy
Mode
Power Supply
Redundancy
Mode
Combined ModePower SuppliesPower Inputs
—
——3100 W11 input (210 V)
3100 W3100 W3100 W6200 W2
3100 W3100 W6200 W9300 W3
6200 W6200 W9300 W12,400 W4
6200 W6200 W12,400 W15,500 W5
9300 W9300 W15,500 W18,600 W6
9300 W9300 W18,600 W21,700 W7
12,400 W12,400 W21,700 W24,800 W8
A combination of 3-kW DC and 3.5-kW HVAC/HVDC power supplies can be used.
Note
Overview of Fan Trays
The Cisco Nexus 7710 switch supports two types of fan trays:
• 38 mm Gen 1 Fan Tray (N77-C7710-FAN)
• 76 mm Gen 2 Fan Tray (N77-C7710-FAN-2)—Use this fan tray for Network Equipment Building System
(NEBS) compliance when the Cisco Nexus 7700 M3-Series 12-port 100-Gigabit Ethernet I/O module
(N77-M312CQ-26L) or the Cisco Nexus 7700 F4-Series 30-port 100-Gigabit Ethernet I/O module
(N77-F430CQ-36) is installed on the switch.
During normal switch operations, all 3 fan trays in a switch should be of the same type.
Note
Fan trays provide airflow through a switch for cooling. Each fan tray contains multiple fans to provide
redundancy. The switch can continue functioning in the following situations:
• One or more fans fail within a fan tray—Even with multiple fan failures, the switch can continue
functioning. When a fan fails within a tray, the functioning fans in the module increase their speed to
compensate for the failed fans. If a fan fails, the failed fan has to be replaced.
The following is a sample output displaying a fan failure, along with the associated syslogs:
switch# show environment fan
Fan:
------------------------------------------------------
Fan Model Hw Status
------------------------------------------------------
Cisco Nexus 7710 Switch Site Preparation and Hardware Installation Guide
OL-30452-01.82
Managing the Switch
Overview of Fan Trays
To Next Page
Loading...
