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Cisco UCS C240 Server Installation and Service Guide
OL-25761-01z
Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Replacing a Drive Backplane
Note
The Small Form-Factor (24-drive or 16-drive) and Large Form-Factor (12-drive) backplanes and their
corresponding chassis drive bays are factory-configurable options. When replacing a backplane, you
must replace it with the same version of the backplane.
To install or replace a drive backplane, follow these steps:
Note
The 16-drive backplane option does not use a SAS expander. You are instructed to skip steps that involve
the SAS expander in the following procedure, if your server has the 16-drive backplane.
Step 1
Prepare the server for component replacement:
a.
Power off the server as described in the
“Shutting Down and Powering Off the Server” section on
.
b.
Slide the server out the front of the rack far enough so that you can remove the top cover. You might
have to detach cables from the rear panel to provide clearance.
Caution
If you cannot safely view and access the component, remove the server from the rack.
c.
Remove the top cover as described in
“Removing and Replacing the Server Top Cover” section on
.
Step 2
Remove all drives and any empty drive trays from the server.
Tip
Label the drive trays as you remove them to aid replacement.
Step 3
Remove the fan tray from the server (see
).
a.
Pinch the blue-plastic lever at each end of the fan tray to release the lever from the chassis.
b.
Simultaneously rotate both levers up 90-degrees. The cam action of the levers lifts the fan tray up
and disengages the six fan modules from their connectors on the motherboard.
c.
Lift the fan tray straight up and remove it from the chassis.
Step 4
Disconnect all cables from the backplane.
Step 5
If your server has a SAS expander, disconnect cables from this expander. (The SFF 16-drive backplane
option does not use an expander.)
Step 6
Disconnect the first backplane power harness cable from the motherboard to provide clearance. This is
motherboard connector BACKPLANE POWER1, between fan connectors 5 and 6 (see
).
Step 7
Loosen the two captive thumbscrews that secure the backplane to the chassis (see
Step 8
Lift the backplane assembly, including steel tray and any expander card straight up from the chassis and
set it on an antistatic mat.
Note
If your SFF server has the 16-drive backplane, it does not use a SAS expander. Skip to
.
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