Cisco Systems MDS 9500 Series manual Requirements Specific to Standard Open Racks

Appendix C Cabinet and Rack Installation

Cabinet and Rack Requirements

Se n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a ck - d o c @ c i s c o . c o m .

•A recommended cabinet depth of 36 to 42 inches (91.4 to 106.7 cm) to allow the doors to close and adequate airflow.

•Bottom of cabinet should be open to enhance airflow.

•The lowest piece of equipment should be installed a minimum of 1.75 inches (4.4 cm) above the floor openings to prevent blocking the floor intake.

Solid-Walled Cabinet Requirements for the Cisco MDS 9509 and the Cisco MDS 9506 Chassis

The solid-walled cabinet requirements for the Cisco MDS 9509 and the Cisco MDS 9506 chassis are as follows:

•A roof-mounted fan tray and an air cooling scheme in which the fan tray pulls air in at the bottom of the cabinet and exhausts it out the top, with a minimum of 500 cfm of airflow exiting the cabinet roof through the fan tray.

•Nonperforated (solid and sealed) front and back doors and side panels so that air travels predictably from bottom to top.

•A recommended cabinet depth of 36 to 42 inches (91.4 to 106.7 cm) to allow the doors to close and adequate airflow.

•A minimum of 150 square inches (968 sq. cm) of open area at the floor air intake of the cabinet.

•The lowest piece of equipment should be installed a minimum of 1.75 inches (4.4 cm) above the floor openings to prevent blocking the floor intake.

Requirements Specific to Standard Open Racks

In addition to the requirements listed in the “General Requirements for Cabinets and Racks” section on page C-1, if mounting the chassis in an open rack (no side panels or doors), ensure that the rack meets the following requirements:

•The minimum width between two front mounting rails must be 17.75 inches (45.1 cm).

•The minimum vertical rack space per chassis:

–Cisco MDS 9513 chassis: 24.5 inches (62.2 cm) or 14 RU.

–Cisco MDS 9509 chassis: 24.5 inches (62.2 cm) or 14 RU.

–Cisco MDS 9506 chassis: 12.25 inches (31.1 cm) or 7 RU.

Note The rack-mount support brackets provided with the Cisco MDS 9513 Director require an additional height of 0.75 inches (1.9 cm). They are required during the installation of the Cisco MDS 9513 Director and cannot be removed.

Note The side rail-mount brackets provided with the Cisco MDS 9509 Director require an additional height of 0.75 inches (1.9 cm). They are required during the installation of the Cisco MDS 9509 Director only, and can be removed or left installed once the front rack-mount brackets are securely fastened to the rack-mounting rails.

Note The Cisco MDS 9506 Director does not require shelf brackets.

Cisco MDS 9500 Series Hardware Installation Guide

OL-17467-02 C-5