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General Installation Requirements
The following lists the requirements for installing rack ready components.
The cabinet should be a standard 19-in. (48.3 cm) four-post EIA cabinet or rack,
with mounting flanges that conform to ANSI/EIA-310-D-1992.
The cabinet depth should be 36 to 42 inches (880mm to 1070mm) to allow the
doors to close and still provide for adequate airflow.
The distance between the two front mounted rack-mounting flanges must be at
least 17.75 in. (45.1 cm).
The distance between the front mounting rail and the rear mounting rail should
be 23.5 to 34.0 in. (59.7 to 86.4 cm) to allow for rail kit installation.
A minimum of 2.5 in. (6.4 cm) of clear space should exist between the side edge of
the installed equipment and the side wall of the cabinet.
No flow obstructions should impeded the air intake or exhaust vents of the array.
The front and rear doors must have at least a 63% open area perforation pattern,
with at least 15 square inches of open area per rack unit.
There must be a minimum of 51mm (2.0") of free space between the front
mounting flange and the inside of the cabinet door.
It is advisable that the roof of the cabinet be open or perforated to enhance
cooling.
It is advisable that the cabinet floor be open or perforated to enhance cooling.
It is advisable that a minimum of 150 sq. in. (968 sq. cm) of open area be provided
at the floor air intake of the cabinet.
The lowest piece of equipment should be installed a minimum of 1.75 in. (4.4 cm)
above the floor openings to prevent blocking the floor intake.
Maintain a minimum fibre channel optical cable bend radius of 3 in. (7.6 cm) and
a minimum of 5 in. (12.7 cm) if cable management brackets are installed. The
cabinet depth must be sufficient to allow the doors to close and to provide these
minimum bend radius clearances.
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Sun StorageTek 6540 Rack Ready Site Preparation and Installation Support Guide • July 2006
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