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Replacing the components
Use the following procedures to replace the components in the DS4500 after it is
installed successfully in a rack cabinet.
Replacing a storage subsystem fan
Complete the following steps to replace the storage subsystem fan that you
removed before the installation:
1. Slide the new storage subsystem fan all the way into the slot.
Attention: Be sure that the lever is pulled straight out (in a horizontal position)
as you slide the unit into the storage subsystem, as shown in Figure 22.
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Storage subsystem
fan lever
GS000035b
2. Press down on the lever and snap the lever into place.
Replacing a controller
Complete the following steps to replace the controller that you removed before the
installation:
1. Using your thumbs, squeeze the two center tabs and pull both controller
handles outward with your fingers.
Attention: Be sure that the lever is pulled straight out (open 90°) as you slide
the unit into the storage subsystem, as shown in Figure 23 on page 41.
Figure 22. Replacing the storage subsystem fan
40 IBM TotalStorage DS4500 Fibre Channel Storage Subsystem: Installation, User’s, and Maintenance Guide