You might need to mark the location for rack installation.
Follow these steps to perform this task.
To mark the installation location on the rack, complete
the following steps:
- Determine where in the rack to place the disk drive
enclosure in relation to other system hardware. As you plan, keep
the following steps in mind:
- Organize larger and heavier units into the lower part of the rack.
- Plan to install units into the lower part of the rack first.
- Record the EIA locations in your plan.
Note: The disk drive enclosure is two Electronic Industries Alliance
(EIA) units high. An EIA unit is 44.50 mm (1.75 in.) in height. The
rack contains three mounting holes for each EIA unit of height. This
enclosure, therefore, is 89 mm (3.5 in.) high and covers 6 mounting
holes in the rack.
- Face the front of the rack and work from the left side.
Make a note of the lowest EIA unit to be used for the disk drive enclosure.
Use tape, a marker, or a pencil to mark the middle mounting hole (A) of
the lowest EIA unit. Count up two holes and place another mark beside
that mounting hole (B). Mark the rack so that
these marks can also be seen from the rear of the rack.
Figure 1. Marking the installation locations
- Repeat the last step to place two marks on the corresponding
mounting holes on the front-right side of the rack.
- Go to the back of the rack. On the left side, find
the EIA unit that corresponds to the lowest EIA unit marked on the
front of the rack.
- Mark the top mounting hole (C) of
this EIA unit. Count up two holes and place another mark beside that
mounting hole (D).
- Repeat the last step to place two marks on the corresponding
mounting holes on the rear-right side of the rack.
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