- Notes, cautions, and warnings
- Introduction and Preparation
- Install the System in the Rack
- Install the Disk Shelves in the Rack
- Connect Cables and Power On
- Configure System for Use
- Add Storage Capacity
Data Domain DD6300 System Installation and Storage Expansion Guide
Modifying rail lengths
This procedure details how to extend or shorten the rail lengths to accommodate third-party racks.
About this task
The following links provide the steps for the various adjustment lengths:
Procedure
- To change the length of the rail to 18-22" (shortest setting) do the following:
Figure 1. Screw and nut placements 
- Orient one of the rails to identify the front of the rail so that the inside of the rail is visible with the spacing markings visible.
- Locate the two screws and nuts which hold the length adjustment bracket in place.
- Using a screwdriver and a nut driver (pliers or vise-grips will work as well), remove both screws and nuts. The length adjustment bracket will be free of the rail.
- Move to the front of the rail and align the mounting slots with the mounting holes near the front of the rail.
Figure 2. 18"-22" marking 
- Slide the inner rail mechanism to the front of the rail until the 18"-22" mark is visible. If the inner mechanism is locked, depress the leaf spring and press the rail locking mechanism to free it.
- Adjust the hardware to make sure the mounting holes are aligned with the mounting slots.
- Secure the length adjustment bracket in place using both screws and nuts that were removed earlier.
- Repeat for the other rail.
- To change the length of the rail to 26-30", do the following:
- Orient one of the rails to identify the front of the rail so that the inside of the rail is visible with the spacing markings visible.
- Locate the most forward (closest to the front of the rail) screw and nut which hold the length adjustment bracket in place.
- Using a screwdriver and a nut driver (pliers or vise-grips will work as well), remove the forward-most screw and nut.
- Slide the length adjustment bracket to the rear of the rail until it stops.
Figure 3. 26"-30" Marking 
- Slide the inner rail mechanism to the rear of the rail until the 26"-30" mark is visible. If the inner mechanism is locked, depress the leaf spring to free it.
- Adjust the hardware to make sure the mounting holes are aligned with the mounting slots.
- Secure the length adjustment bracket in place using the screw and nut that were removed earlier.
- Repeat for the other rail.
- To change the length of the rail to 30-34"" (longest setting) do the following:
- Orient one of the rails to identify the front of the rail so that the inside of the rail is visible with the spacing markings visible.
- Locate the two screws and nuts which hold the length adjustment bracket in place.
- Using a screwdriver and a nut driver (pliers or vise-grips will work as well), remove both screws and nuts. The length adjustment bracket will be free of the rail.
- Move the length adjustment bracket to the rear of the rail and align the mounting slots with the mounting holes near the rear of the rail.
Figure 4. 30"-34" Marking 
- Slide the inner rail mechanism to the rear of the rail until the 30-34" mark is visible. If the inner mechanism is locked, depress the leaf spring to free it.
- Adjust the hardware to make sure the mounting holes are aligned with the mounting slots.
- Secure the length adjustment bracket in place using both screws and nuts that were removed earlier.
- Repeat for the other rail.
Next steps
After the rails are adjusted to the proper length, install the rails in the rack.
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