Fair analysis of common strengths and weaknesses of the three servers we shape and appearance, there are three common server, tower, rack, blade server form factor of three. I will explain in detail the following three servers and differences:
1. Tower server is also our common server, with the host PC as normal, the same shape as the tower stood, so called, the tower server.
Main Advantages: looks great, interior space is relatively large, high profile, the machine is better scalability, there is enough space to facilitate future upgrades.
The main drawback: tall big, too independent, too much space
For groups: small entry-level enterprise
2. Rack-mounted servers, industrial products under the Standardization and appearance standards in accordance with uniform design, with the use of cabinet unity. In space, mainly used to measure the height of U. Both, we always said the server managed 1U, 2U rack server means.
Main advantages: direct benefit is to minimize the space occupied by the server, and managed to reduce the space in the engine room when the price will be much cheaper. In addition, as the shape and design of uniform standards, coordination and management is strong.
The main drawback: small body, scalability, and poor heat dissipation, relatively narrow range of applications.
For groups: more servers, need to focus on management of Internet companies
3. Blade server, the server appeared in recent years, the new darlings of the blade server is a HAHD (High Availability High Density, high availability high-density), low-cost server platform, is designed for specific industries and applications designed for high-density computing environment The main structure is a large main chassis, internal plug in a number of "blades", each of which a blade is actually a system motherboard, similar to an independent server, they can start their own local hard disk by the operating system. Each piece of the blade can run their own systems, serving different user groups specified, no correlation between each other. Moreover, the software can also use the system board set into one of these server clusters. In cluster mode, all the blades can be connected together to provide high-speed network environment, shared resources, for the same user base. Insert the new blade cluster, you can improve overall performance. And because each piece is hot-swappable blades, so the system can easily be replaced, and will reduce maintenance time to a minimum. j short, blade server is a server cluster.
Main advantages: saving the server to maximize the use of space and cost, and to provide users with flexible, scalable and convenient means.
The main drawback: poor heat dissipation, high prices, the industry is strong
For groups: finance and banking and data center