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EMC Rails and Enclosures (CX4 Series Storage Systems) Field Installation Guide
Installing a 3U disk enclosure (DAE) in a cabinet
Follow these steps to install the enclosure on the rails in the cabinet:
1. With help from another person, lift the enclosure and, from the front 
of the cabinet, slide the enclosure onto the rails as shown in 
Figure 43.
Figure 43 Sliding an enclosure onto the mounting rails
When the enclosure slides to the back of the cabinet, the two 
notches in the rear of the enclosure insert into the rear tabs 
approximately 14 inches from the front of each rail. The tabs 
secure and support the rear of the enclosure. See Figure 44 on 
page 55.
Note: If the chassis does not slide all the way into the cabinet, you may 
need to further loosen the screws that hold the rear of the rails in place, 
then adjust the rails to allow the tabs to fit into the notches.
EMC3490
Rear
Front