I. How to choose the right server rack?
Choosing a deeper rack allows you to install two sets of equipment face-to-face, thus accommodating more devices. This method allows for two rows of equipment to be installed in the rack, one row to be loaded and unloaded from the front door and the other from the rear door. The rack should be adjustable. After calculating the rack space (in "U" or 1.75 inches), you also need to consider the room size. No one wants to find themselves needing to crammed in more equipment shortly after filling the rack.
Once you've purchased and installed the server rack, these extra devices often appear. Therefore, as a basic principle, the rack height should be 20%-30% higher to allow for system expansion. This extra space also improves ventilation for the equipment. For devices mounted on racks, width doesn't need to be considered, as they are designed for rack width. However, for servers and other peripherals that cannot be mounted on racks, width is crucial.
Since the total weight of the equipment is often considerable, you need to choose a rack that can accommodate approximately 1500 pounds; that is, a robust rack with a good load-bearing structure. Inside the rack, the weight of the equipment determines whether to choose standard or weighted sliding brackets, and also dictates the selection of other accessories. Choose a rack that is 100% compatible with all servers and meets or exceeds all OEM/manufacturer Category 3 rack specifications. If you intend to install tower or desktop equipment, sliding brackets and mounting accessories are essential.
Since the installation includes network cables, telecommunications cables, and power cables, hook and loop straps or toothed straps are needed to effectively and orderly secure the cables inside the cabinet. It would be ideal if the cabinet had a cable management module that allowed cables to be directly secured within vertical mounting rails. In either case, the top and side walls inside the cabinet should have sufficient securing loops (to protect the cables), or the cabinet base can be raised to allow for cable routing underneath.
II. Server Rack Grade
Although server racks may look similar, they can be categorized into several types based on their purpose. The rarest are racks for cabling and racks for housing servers. Cabling racks are typically used to house multiple terminal switches, resulting in numerous network cables that need to be routed out. Since it's inconvenient to install a door on such racks, they resemble server racks more closely, and some rack manufacturers refer to this product as cabling racks. On the other hand, server racks for housing servers definitely have doors and locks to protect the valuable equipment inside. Therefore, high-end routers and firewalls are usually placed in these racks.
Take server racks as an example; there are different grades. This type is a standard server rack with a glass door. It has four cooling fans at the top, primarily for ventilation and heat dissipation, providing a good constant temperature environment inside the rack. The bottom of the rack is perforated for ventilation. Servers in the top of this type of rack have excellent heat dissipation, but the heat dissipation for servers in the middle and lower sections is less ideal.
The type of server rack shown above is a relatively high-end server rack. It uses numerous air vents on the front and back doors for ventilation and heat dissipation. As a result, the cool air from the server room air conditioner can be well distributed around each server in the rack, and the overall heat dissipation effect of the rack is good. Moreover, this type of rack uses high-quality materials, is corrosion-resistant and rust-proof, and has a strong load-bearing capacity.
III. Factors Users Should Consider When Purchasing Server Racks
1. Reliable quality assurance
Choosing the right server rack and cabling rack is crucial; even slight negligence can lead to significant losses. Regardless of the brand, quality is always the primary consideration for users.
2. Load-bearing capacity guarantee
As the density of products placed inside server racks increases, good load-bearing capacity becomes a basic requirement for a qualified server rack product. A substandard server rack, due to its poor quality, may fail to effectively protect the equipment inside, potentially impacting the entire system.
3. Temperature control system
The cabinet features a robust temperature control system to prevent overheating or overcooling of the products inside, ensuring efficient equipment operation. Fully ventilated cabinets are available, and fans (with a lifespan guarantee) can be installed. Independent air conditioning systems can be installed in hot environments, while independent heating and insulation systems can be installed in extremely cold environments.
4. Anti-interference and other
A fully functional server rack should provide various door locks and other features, such as high immunity to interference, including dustproof, waterproof, or electronic shielding; it should also provide suitable accessories and installation support to facilitate cabling, make management easier, and save time and effort.
5. After-sales service
The effective services and comprehensive equipment protection solutions provided by the company can bring great convenience to users' installation and maintenance.
6. Power distribution system
How can server racks cope with rising power density? With the increasing trend of high-density IT installations within server racks, the power distribution system becomes a critical factor in ensuring the rack's effectiveness. Proper power allocation directly affects the availability of the entire IT system and is a fundamental element for its effective operation—an issue often overlooked by data center administrators. Due to the increasing miniaturization of IT equipment, the density of equipment installed within server racks is constantly increasing. For example, a single 7U blade server requires approximately 3kVA of power, and a 42U high rack may house up to eight such servers, resulting in a total power demand of 24kVA. This poses a significant challenge to the server rack's power distribution system. Simultaneously, the increase in input and output ports also places high demands on the reliability of the power distribution system.
A well-designed rack power distribution system should adhere to the principles of reliability-centric design, specific design for the rack system, and seamless coordination with the power distribution system. It should also consider ease of installation, intelligent management, adaptability, and ease of operation and maintenance. The rack power distribution system should bring the power source closer to the load to reduce potential points of failure in the power path. Furthermore, it should gradually implement local and remote monitoring of load current and remote control of power distribution, integrating power distribution management into the overall intelligent management system of the data center.
7. Cable Layout
What to do if there's a cable problem? Navigating through towering server racks in a massive data center is difficult enough, let alone quickly locating and repairing faulty lines. The adequacy of the overall server rack solution, and its effective cable management, will become a key evaluation factor.
From the perspective of internal cabling in server racks, today's data centers have higher rack density, accommodate more IT equipment, and extensively use redundant components (such as Foshan electrical appliances and storage arrays). Equipment configurations within racks change frequently, and data cables and physical cables are added or removed at any time. Therefore, server racks must provide ample cable routing, allowing cables to enter and exit from the top and bottom. Inside the rack, cable routing must be convenient and orderly, close to the cable interfaces of the equipment to shorten cabling distances; minimize cable space occupation; ensure that equipment installation, adjustment, and maintenance are not interfered with by cabling; and ensure that airflow for heat dissipation is not obstructed by cables. Simultaneously, in case of a fault, it should allow for rapid location of the equipment cabling.
When planning a data center that includes servers and storage products, we often overlook seemingly minor details like server racks and power supplies. However, these supporting facilities have a crucial impact on system reliability during actual installation and use. In terms of price, server racks and cabinets range from several thousand to tens of thousands of yuan, which is incomparable to the value of the internal equipment. Because the equipment is concentrated within a server rack, there are particularly stringent requirements for its specifications. If these are not carefully considered during selection, the resulting problems during use can be enormous.
IV. Key Factors in Selecting a Server Rack
There are many factors to consider when choosing a server rack, such as material, style, structure, and function. Easycom server racks are made with advanced technology and come in a variety of types, including network racks, server racks, and intelligent racks, to meet your diverse server rack needs.
