Site Planning; Rack And Clearance Requirements; Site Environment Specification; Power Requirements - Mellanox Technologies Grid Director 4036 Installation Manual

6.3

Site Planning

Planning the proper location and layout of your equipment rack or wiring closet is essential for
successful 4036/2036 switch operation. Equipment placed too close together or in an
inadequately ventilated area can cause overheating of the system. In addition, poor equipment
placement can render system panels inaccessible and difficult to maintain.
To ensure normal operation and avoid unnecessary maintenance, plan your site configuration
and prepare your site before installation.
6.3.1

Rack and Clearance Requirements

The 4036/2036 switch occupies 1U in a 19"rack and can be mounted either way, with the
InfiniBand ports facing the rear or the front of the rack. Switch cooling direction is either from
back-to-front or front-to-back, according to the switch fan unit configuration.
The rack brackets mounting holes conform to the IEA-310 standard for 19-inch racks.
The 4036/2036 switch places no restrictions on rack location. It is recommended to mount the
4036/2036 chassis near the middle of the rack, at or near eye level, to make it easy to see status
indicators, port numbers, etc.
It is also recommended to mount the rear side of the 4036/2036 switch in a way that enables
easy access to the InfiniBand cables, connectors, and LED indicators. It is recommended to
leave 4" (10 cm) for chassis clearance both in the front and the rear of the chassis. These
requirements are also listed in
6.3.2

Site Environment Specification

For the operating and non-operating environmental site requirements for the 4036/2036, see
Power Specifications - Power Supply Module
The system can continue to operate within specified environmental ranges; however, a
measurement that approaches the minimum or maximum of a range indicates a potential
problem. You can maintain normal operation by anticipating and correcting environmental
conditions before they exceed the maximum operating range.
6.3.3

Power Requirements

Power requirements are useful for planning the power distribution system needed to support
the 4036/2036 switch. Heat dissipation is an important consideration for sizing the
air-conditioning requirements for an installation. Verify the available power source at the site
for the type of device you are installing.
For the 4036/2036 switch power requirements, see
Module (on page 25).
The 4036/2036 switch requires one or two power connections using standard 3-wire AC power
cords including a safety ground. The input voltage characteristics can be found in the power
supply specifications, in
The 4036/2036 switch includes two hot-swappable redundant power supplies, providing full
back-up purposes.
32
Chassis Clearance Requirements
(on page 25).
Power Specifications - Power Supply Module
(on page 29).
Power Specifications - Power Supply
(on page 25).
Hardware Installation