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Views: 120 Author: Site Editor Publish Time: 2022-10-20 Origin: Site
Tower server is generally the most seen, its shape and structure are similar to the ordinary PC, just a little larger, its size is not a uniform standard. Tower server motherboard is more scalable, there are many slots, and the tower server chassis often reserved a lot of space inside the chassis for redundant expansion of the hard disk, power supply, etc.. This type of server does not require additional equipment, does not require much space for placement, and has good scalability and can be highly configurable, and thus has a wide range of applications to meet the needs of common server applications in general.
This type of server is especially suitable for common entry-level and workgroup-level server applications, and the cost is relatively low, and the performance can meet the requirements of most small and medium-sized enterprise users, the current market demand space is still very large.
However, this type of server also has many limitations. When multiple servers are needed to work simultaneously to meet higher server application requirements, they are unsuitable because they are relatively large and take up a lot of space, and are not easy to manage.
Rackmount servers: Rackmount servers look like switches rather than computers, and are available in 1U (1U = 1.75 inches = 4.45CM), 2U, 4U, and other sizes. Rackmount servers are installed inside a standard 19-inch cabinet. This structure is mostly a functional server.
With many different equipment units or several servers are placed in a cabinet, this kind of server is a rack server.
For important enterprises such as securities, banks, post and telecommunications, a system with complete fault self-healing capability should be used, and redundancy measures should be adopted for key components, and dual hot backup high availability systems or high performance computers can be used for servers used for critical services, so that system availability can be well guaranteed.
Blade server is a HAHD (High Availability High Density, High Availability High Density) low-cost server platform, is designed for special applications and high-density computer environment, its main structure is a large main chassis, the internal can be inserted into many "blades" Each blade is actually a system motherboard, similar to a stand-alone server that can boot its own operating system from a local hard drive. Each blade can run its own system, serving a designated group of users, unrelated to each other. And, it is also possible to aggregate these motherboards into a server cluster using system software. In cluster mode, all blades can be connected to provide a high-speed network environment and share resources to serve the same user groups. By inserting new blades into the cluster, the overall performance can be improved. And because each blade is hot-swappable, the system can be easily replaced and maintenance time is reduced to a minimum.
Blade servers are more space-efficient than rackmount servers, and at the same time, have more prominent cooling issues, often with large, powerful fans in the chassis to dissipate heat. Although this type of server is more space-saving, but its cabinet and blade prices are not low, generally used in large data centers or areas that require large-scale computing, such as banking and telecommunications financial industry and Internet data centers.
