If you decide to hard mount your storage unit (physically
attach the unit to the floor), use these guidelines.
- Take
the following criteria into consideration when you hard mount the unit:
- Weight and dimensions of your storage unit
- See Dimensions and weight of individual models.
- Center of gravity
- Based on rear side orientation, the center of gravity is estimated to
be approximately 101.6 cm (40 in.) up from the floor.
- Fundamental natural frequency
- The measured vertical resonance frequency is 11.81 Hz, on top of a horizontal
frame member adjacent to one of the casters.
- Caster locations and cable openings
- Four casters are located under each corner of the frame. Each caster is
located as follows:
- 9.37 cm (3.7 in.) from the front or rear edge of the frame
- 8.55 cm (3.4 in.) from the side frame
The cable opening is centered in bottom, rear of the frame. The opening
dimensions are as follows: - 16 cm (6.3 in.) high
- 45.7 cm (18.0 in.) wide
- Consider using the four M12 threaded holes on the underside
of the model frame or expansion unit frame (see Figure 1). IBM® uses
the holes to fasten the frame to shipping containers during shipment from
the assembly factory to the installation site. You might use these holes to
fasten the unit to the floor. Keep in mind that IBM has not performed any earthquake testing
using any hard mounting method or the use of these holes to fasten a unit
to the floor. Before you use these holes for earthquake stability, contact
a registered structural engineer or earthquake consultant to review such use.
Figure 1. Underside of a DS6000™ unit (dimensions are in mm)Legend:
- 1: Front of the unit
- 2: Rear of the unit
- 3: Four M12 threaded holes
