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Before you begin
This task assumes that the following conditions were met:
v All power cables were removed from the enclosure, as described in "Powering
v The top cover, fan modules, and the other heavy FRUs (drives, secondary
v The expansion enclosure was removed from the rack, as described in "Removing
About this task
The 2076-92F expansion enclosure contains two fan interface boards (FIBs). The
FIBs act as the interface between the fans and the system drive board. FIB 1
connects fan modules 1 and 2 to the drive board; FIB 2 connects fan modules 3
and 4. If both fan modules controlled by a FIB fail, it is possible that the FIB needs
to be replaced.
Important: Because this task is disruptive to the storage system, always attempt
fan replacement first. See "Removing a fan module: 2076-92F" on page 109 and
"Installing or replacing a fan module: 2076-92F" on page 85 for information about
the removal and replacement procedures. Ensure that both fans are installed
correctly. Perform the following procedure only if the amber fault LED on each fan
remains lit ( 1 in Figure 105).
Figure 105. Fan module LED
Procedure
1. Using a cross head screwdriver, remove the narrow metal cover that is over the
off the expansion enclosure: 2076-92F" on page 129.
expander modules) were removed before the enclosure was removed from the
rack.
an expansion enclosure from a rack: 2076-92F" on page 89.
Ensure that you use a lift to support the weight of the enclosure.
1
FIBs, as shown in Figure 106 on page 112. The screws are on each side of the
chassis. Place the cover and cover screws in a safe location.
Chapter 2. Installing the system hardware
111
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