Edge-Core AS6700-32X, Руководство по установке, Страница: 14 / 54

Chapter 1
| Switch Description
Data Center Deployment
– 14 –
Figure 4: Converged Ethernet Data Center Deployment
Rack Cooling
The top-of-rack switch is a high-performance, high-density unit that generates a
substantial amount of heat. When mounted in a rack with other equipment, it is
important that the switch has the same airflow direction to avoid “hot loops” in the
data center ailses. Hot loops increase cooling requirements since warm air is drawn
into rack devices instead of cool air.
Most rack-mounted blade servers draw cool air from the front and expel hot air at
the rear. The top-of-rack switch includes two fan trays that have a front-to-back
(F2B) airflow direction that maintains cool ailses in the data center.
Figure 5: F2B Airflow Cooling
FCoE Storage
Servers Servers
ToR Switch ToR Switch
Core Switch Core Switch
Console
Reset
Clear
M ode
Select
Act
Fdx
100
Switch Engine Fail
Self Test
A
1X
Link
M ode
2X
3X
4X
5X
7X
6X
8X
A
1X
Link
M ode
2X
3X
4X
5X
7X
6X
8X
A
1X
Link
M ode
2X
3X
4X
5X
7X
6X
8X
A
1X
Link
M ode
2X
3X
4X
5X
7X
6X
8X
Status
A
I
E
C
1
G
B
J
F
D
2
H
M odules
Power
Fan
A
1X
Link
M ode
2X
3X
4X
5X
7X
6X
8X
A
1X
Link
M ode
2X
3X
4X
5X
7X
6X
8X
A
1X
Link
M ode
2X
3X
4X
5X
7X
6X
8X
A
1X
Link
M ode
2X
3X
4X
5X
7X
6X
8X
A
1X
Link
M ode
2X
3X
4X
5X
7X
6X
8X
A
1X
Link
M ode
2X
3X
4X
5X
7X
6X
8X
Console
Reset
Clear
M ode
Select
Act
Fdx
100
Switch Engine Fail
Self Test
A
1X
Link
M ode
2X
3 X
4X
5X
7X
6
X
8X
A
1X
Link
M ode
2X
3 X
4 X
5X
7X
6
X
8X
A
1X
Link
M ode
2X
3 X
4X
5X
7X
6
X
8X
A
1 X
Link
M ode
2
X
3X
4 X
5
X
7 X
6X
8 X
Status
A
I
E
C
1
G
B
J
F
D
2
H
M odules
Power
Fan
A
1X
Link
M ode
2X
3 X
4 X
5X
7X
6
X
8X
A
1X
Link
M ode
2X
3 X
4 X
5X
7X
6
X
8X
A
1X
Link
M ode
2X
3 X
4 X
5X
7X
6
X
8X
A
1X
Link
M ode
2X
3 X
4 X
5X
7X
6
X
8X
A
1X
Link
M ode
2X
3 X
4 X
5X
7X
6
X
8X
A
1 X
Link
M ode
2
X
3X
4X
5
X
7 X
6X
8 X
Front of Rack
Rear of Rack
Cool Aisle
Hot Aisle
Servers
ToR Switch