power supply is securely installed and seated properly, athat both ends of the
power cord are secure, and that primary power is available.
11.
Optionally, enter
psShow
at the command line prompt to view the power
supply status. For more information about this command, refer to the
Fabric
OS Command Reference
. Power supply status can also be viewed using the Web
Tools application.
Verifying fan assemblies
The three fan assemblies are hot-swappable if replaced one at a time. They are
identical and fit into any fan slot.
Attention:
Maintain all three fan assemblies in operational condition for
redundancy.
Fabric OS identifies the power supply/fan assemblies as follows (viewing the
switch from the nonport side):
v
Fan assembly #1 is on the right
v
Fan assembly #2 is in the center
v
Fan assembly #3 is on the left
To determine if a fan assembly requires replacing, do any of the following:
v
Check the fan assembly status LED (
2
in Figure 16 on page 33). If the fan
status LED is not on, verify that the fan is seated correctly. If the light does not
turn green, the fan assembly may need to be replaced.
v
In Web Tools, check the
Fan Status
icon background color. It will be either
yellow or red if the fan has failed. When the fan is functioning correctly, the
background color is green.
v
Enter the
fanShow
command at the command prompt to display the fan status
as shown in the example below:
switch:admin>
fanshow
Fan 1 is OK, speed is 9507 RPM
Fan 2 is OK, speed is 9246 RPM
Fan 3 is OK, speed is 9337 RPM
Replacing a fan assembly
Attention:
Before installing, removing, or replacing any component, read and
follow the “Safety notices and labels” on page xiii.
Note:
Disassembling any part of the fan assembly voids the part warranty and
regulatory certifications. There are no user-serviceable parts inside the fan
assembly.
Attention:
The cooling system relies on pressurized air, do not leave either of the
power supply slots empty longer than two minutes when the switch is operating.
If a fan assembly fails, leave it in the switch until it can be replaced.
This section describes how to remove and replace a fan assembly. Although these
FRUs can be removed and replaced without special tools, qualified personnel
should perform the installation and service procedures. The switch can continue
operating during the FRU replacement if you follow the steps in the procedure.
The switch has three fan assemblies (
3
,
4
, and
5
in Figure 19 on page 40).
Chapter 3. Using and maintaining the switch
39
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