Server Cabinet and Data Center Rack Mount Cheats

This document describes data center cabinets, rack selection placement techniques summarized in accordance with ANSI/TIA/EIA-606-A standards...

The placement and distribution of cabinets and racks can be arranged and labeled according to the division of the raised floor. According to ANSI/TIA/EIA-606-A, two letters or two Arabic numerals must be used in the data room. Each piece of 600mm? 600mm overhead floor.

For the front, back and height of the cabinet/rack column, the following provisions are made for the ANSI/TIA/EIA standard:

1. Back of the cabinet/rack column The minimum spacing is 0.6 m (2 ft) apart, and the recommended interval is 1 m (3 ft);

2. The front spacing of the cabinet/rack column is a minimum of 1 m (3 ft) if deeper When the equipment is placed in a rack/cabinet, the recommended interval is 1.2 m (4 ft);

3. The maximum allowable height of the cabinet/rack is 2.4 m (8 ft), and the recommended maximum height is 2.1 meters (7 feet).

It is recommended to use a standard 19-inch wide cabinet/rack or a 23-inch wide cabinet/rack. When using multiple cabinets to connect into a cabinet column, the vertical cable manager must be used between the cabinets and at the beginning and end of the entire cabinet column. The vertical cable manager between the cabinet and the cabinet must be no less than 25.4 cm (10 inches) wide, and the vertical cable manager at the start and end should be no less than 15.25 cm (6 inches) so that the cables are in the cabinet. Protect and manage cables as they pass between cabinets.

For the data center, the optimal operating environment is 22 to 24 degrees Celsius, and the relative humidity is between 35% and 50%. Therefore, the air conditioning and refrigeration system is required to meet the above requirements. Any change in temperature or change in relative humidity can result in improper operation of sensitive equipment. Any sudden temperature changes or changes in humidity can cause damage to the equipment.

With the continuous increase in the amount of equipment in the communication room and the application of new technologies, the superior performance of the refrigeration system has become more important than ever. For example, high-density blade servers will cause a rapid increase in heat near them, so cooling in these locations is required to enable blade servers to operate in an optimized environment.

It is now more and more common for manufacturers to provide heat from equipment. Typical heat generation is expressed in watts or BTU/h. There are usually different cooling systems to choose from, from air-assisted cooling systems (fans) to standard air conditioning systems and forced heat removal systems. In the rack/cabinet where the equipment is normally installed, the inlet for cold air is in front of the cabinet/rack and hot air is exhausted from the back. Therefore, the TIA/EIA-942 standard recommends arranging the rows of equipment in an alternating pattern, ie the cabinets/racks are arranged face to face to form hot and cold zones. The cold zone is the front area of ​​the rack/cabinet. If there is an anti-static floor, the power cable is preferably distributed under the floor and enters the cabinet from the front cold zone through the opening in the anti-static floor.

The hot zone is located at the rear of the rack/cabinet and contains the trunking for telecommunications cabling. Above the device, a front-to-back cooling configuration is used. For the cable layout, the electronic devices are arranged on opposite sides of the cold aisle, and the cold air is blown out from the overhead floor of the drilled hole. The electronic devices on both sides of the hot aisle are back to back, the floor under the hot aisle is non-porous, the fan on the ceiling discharges hot air, and the data cable is laid under the floor.

In order to make better use of the existing refrigeration and exhaust system, when designing and constructing the data center, avoiding the roundabout airflow, causing the hot air not directly excluding the computer room; avoiding the overhead floor space line The cables are messy and stacked, which hinders the flow of airflow; avoids too much cable stacking inside the cabinet and affects the discharge of hot air; in a cabinet that is not fully loaded, it is recommended to use a blank baffle to prevent the “hot zone” airflow from entering the “cold zone”. Causes a roundabout airflow.