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14 FibreSTORE RAID System: Rack Installation Guide
Step 2. Installing a Cache Retention Unit (CRU)
The CRU is shipped without mounting brackets on it; you must install them before inserting
the CRU in the rack. The install kit for the CRU contains the parts you need to mount the
brackets and to attach the CRU to the rack.
Ciprico ships the rack with the CRU support angles installed in the rack.
Install the CRU from the back of the rack.
1. Remove the packaging from the CRU.
2. Install mounting brackets on both sides of the CRU as shown in Figure 7. (Instructions
are contained in the CRU install kit.)
3. Open the back door of the rack.
4. Using the CRU install kit, insert four cage nuts (two nuts on each side of the rack)
above the support angles over the power distribution units. Align the cage nuts with the
screw slots in the CRU mounting bracket. See Figure 7.
Figure 7. Installing a CRU
2345
CRU Mounting
Brackets
Screws for
Mounting Bracket
on CRU( 2 per side)
Screws for Attaching
CRU to Rack (2 per side)
Support
Angle
Cage Nuts
Power
Distribution
Unit
Power
Distribution
Unit