Server Rack Choice: How to Make It Right?

Aria Zhu
3 min readAug 27, 2018

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Data centers and server rooms house an abundance of server rack cabinets, which work to organize IT equipment into assembly order to make the most use of space and resources. Your daily operation and maintenance rely significantly on the server rack choice since it greatly affect the network reliability, serviceability and manageability. Not all the server racks are created equal, so we will walk you though some critical aspects for choosing the right server rack.

What Is a Server Rack and Why We Need It?

Typically made of steel or aluminum, rails and framework, a server rack is capable of holding hundreds or even thousands of pounds of equipment. For now, the vast majority of IT applications use 19-inch server racks and equipment. As the width of which is always the same, the height and depth can be various. Server rack is designed to hold all standard 19-inch rack-mountable equipment, as long as it isn’t too deep for the cabinet or too high to fit in the available rack spaces. Moreover, server rack also holds IT infrastructures and rack accessories that support the operation of the production equipment, including UPS systems, PDUs, cable managers, KVM switches, patch panels and shelves.

Common Server Rack Types

Basically, there are two types of server racks: rack enclosures (or rack cabinets) and open-frame racks. And based on where they are used, rack enclosures and open-frame racks are further divided into floor-standing server rack and wall-mount server rack.

What Should I Look for a Rack?

There exist a dazzling array of rack options, in terms of different heights, sizes and styles. When selecting the rack for your installation, here are some factors to consider:

Server rack size

Be sure to accurately assess the amount of rack space you need while allow for future growth. So always pay attention to the height and depth of a server rack. The height of a rack is expressed in “rack units” (a rack unit is 1.75 inches, or 44.45mm). The actual height of a 42U rack is therefore 42 x 1.75 = 73.5 inches.

AV vs. IT-based installations

The choice should better depend on the equipment being installed. IT racks are designed for traditional IT equipment in which the I/O and cabling is on the front of the rack. This makes easier troubleshooting and network monitoring. AV racks are typically shallower in depth, enabling a cleaner installation by using equipment with rear facing I/O.

Airflow and cooling

These two factors are critical to the performance and longevity of the equipment installed in the rack. Depending on the airflow condition of the place the rack located, you may need to increase the rack’s cooling capability.

Equipment width

With 19-inches being the traditional standard for rack mounted network hardware, some vendors make custom sizes for other types of equipment. Make sure to check what size of rack your equipment requires.

Security options

While there might be a great amount of expensive equipment installed on the rack, you have always to bear security in mind. A rack that meets the security goal is thus essential. Locking cabinet and tinted door glass can help protecting your network from prying eyes and hands.

Conclusion

The right server rack type that meets your demand helps you improve power protection, cooling, cable management, and physical security. Hope the knowledge and suggestions offered in this article will help you choose the perfect server rack/server rack cabinet. Taking the above factors into consideration and thinking thoroughly before making the choice. Should you ever need a server rack or associated cable management accessories such as fiber optic patch panel, Ethernet patch panel and cable organizer, feel free to contact us at sales@fs.com

Source: Server Rack Choice: How to Make It Right?

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