Well, from the software engineers’ point of view, the term “rack” does not signify an “a rack of books,” like it would to every other person. To them, the term “rack” stands for data center racks.

Datacenter racks are generally of two types, namely, 2-post racks or 4-post racks. A clear understanding of the difference between 2-post racks and 4-post racks is essential to ensure that the data center or computer closet is set up correctly to fulfill the needs of the user.

In such a scenario, it is equally important to know the pros and cons of both the 2-post racks and 4-post racks before buying any one of them. This knowledge will help the customer understand which of the two he needs & choose a Server Rack.

2-Post Racks:-

A 2-Post rack, also known as a “Telco rack” or “relay rack,” is a type of equipment rack made of either aluminum or steel. These structures consist of two support beams that are vertically placed. These beams mostly find application in light IT types of equipment like switches. They need to be bolted into the floor to increase their stability. However, the only drawback of 2-post racks is that they are not useful for more substantial types of equipment like monitors and routers, which need more significant support.

Advantages of 2-Post Racks:-

Size-2-post racks occupy minimum space and hence find application in full data centers or computer closets where floor space is limited. They may be fit into smaller places, thereby helping to reduce clutter. They come in different sizes, from four feet to nine feet from the ground level.

Cost:- 

In general, 2-post racks are cheaper than their 4-post counterparts. Specific models of 2- post racks are even half the cost of the typical 4-post racks. As a result, customers prefer to invest more in them.

Design:- 

In the 21st century, customers tend to stress a lot on the design. In an aesthetic sense, many modern designs have evolved, to provide the necessary structural support, while blending into the background. High-quality materials go into the manufacturing of the 2-post racks.

Installation:- 

2-post racks are easier to install and remove, as compared to the 4-post racks. The instructions to install them are easy to follow. As a result, the server room can be used before the scheduled time. Moreover, the procedure to uninstall them is equally easy before shifting venues or upgrading hardware.

Ventilation:- 

The circulation of air is smooth around types of equipment mounted on 2-post racks. It lessens the heat in the area surrounding the types of equipment. As a result, the lifespan of the types of equipment is increased. Their performance is improved because 2-post racks are not enclosed.

Access:- 

Last but not least, 2-post racks have open frames. As a result, the types of equipment that are mounted on 2-post racks are easier to access.

4-post Racks:-

4-post structures consist of 4 support beams, placed vertically. Some of the 4-post models include screened doors at the back as well as in the front. This design is planned for ventilation as well as access.

A 4-post rack has its advantages. They are as follows:-

Advantages of 4-Post Racks:-

Sturdy:- 

4-post racks can support more weight. Equipment like large switches and routers can use their support. It is indeed heartening to know that the servers are at least physically secure. Only after the servers are physically secure can people worry about digital security. A 2-post rack may be more cost-effective, but it will never be as sturdy as its 4-post counterpart.

Versatile:-

4-post packs are handy. We can choose from a variety of options. Any equipment will fit into it. One can add more doors to the server, if it is mounted on a 4-post rack, for heightened security. The added doors will prevent unauthorized users from accessing the hardware, which protects sensitive data. Also, this versatility helps in the future growth of a data center.

Protection:-

The 4-post racks prevent damage in case something accidentally falls on it or any other object bangs against it. As a result, we may conclude that 4-post racks protect the equipment which is housed within them.

Cables:-

Protected cables within a typical 4-post rack, are safer. As a result, they do not run the risk of getting broken so easily.

Choosing The Best Rack:-

To conclude, the priorities of every data center is different. For some organizations, it is more important to buy a rack within a stipulated, low budget. A 2-post rack is what they want. On the other hand, there is a group of organizations for whom the sturdiness of the product is more important than the cost. They can quickly go in for the 4-post racks. Well, a data center needs to collate the necessary information before investing in a proper rack. Read Beginners Guide To Server Racks.