Data Domain DD6300 System Installation and Storage Expansion Guide

Installing rails

1. Locate the 4U high cabinet space designated for the shelf.
2. Adjust rail length if required.
3. The rails are shipped with M5 adapters, which fit into the Dell EMC NEMA channels. For Dell EMC racks, proceed to step 4. For third-party racks, proceed as follows:
   1. Using a flat-tipped screwdriver, remove the two M5 adapters from the adapter mounting block on the rails.
   2. Select the required adapters from the hardware kit and install the adapters into the adapter mounting block. The following table shows the pins for third-party racks.

      Table 1. Pins for third-party racks

      Rail Pins from kit	Part Number and Description	Suggested Use
      	036-028-018 Custom screw, M4 x 10MM (Quantity: 4 per kit)	Used for any third-party rack. Can be used in racks with threaded holes.
      	036-028-016 3.8MM Alignment Pin (Quantity: 8 per kit)	Used in racks that have M5, #10, or #12 threaded holes.
      	036-028-017 4.8MM Alignment Pin (Quantity: 8 per kit)	Used in racks that have M6 threaded holes.

4. Install the right rail to the rack rear channel. You can adjust the rails later, if necessary. The following figure shows the installation details.

   

   1. Align the right rail with the lower U of the allotted 4U space.
      NOTE Each of the rail alignment pins must be located in the middle holes of the bottom two U spaces of the 4U space.
   2. With the release latch on the outer (rear) part of the rear channel, place the catch mechanism over the channel.
   3. Push the rail back to secure the rail adapters in the cabinet channel. An audible click indicates that the rail is secure in the channel.
   4. Make sure the rear post/catch mechanism is secure and attached.

      

5. Install the right rail to the front channel.
   1. Align the front of the right rail so that it is level and the front rail pins are aligned with the middle holes of the bottom two U spaces of the 4U space.
   2. Pull the rail forward, with the adapters aligned with the middle holes of the bottom two U spaces of the 4U space.
      An audible click indicates that the connection is secure.

      

6. Install the left rail by repeating step 3 or step 4.
7. On both left and right rail assemblies, install a single long screw between the rail posts in the upper screw hole to secure the rails as follows:
   1. For Dell EMC racks or racks that do not have threaded holes, insert a single M5 screw into the larger of the two screw holes.
   2. For third-party racks with threaded holes, insert the M4 screw into the smaller of the two screw holes. The screw is smaller than the threaded hole and will pass through the threads.