1. Is double path equal to double core?

Often hear of double way to strong XX type server, appeared again recently double core to strong, it is two CPU, is double way equal to double core?

Answer: No

Regardless of the single-channel, dual-channel, four-channel, or eight-channel server, the “channels” refer to the number of physical cpus on the server, that is, the number of CPU slots on the mainboard of the server.

More recently, dual-core processors, which pack two CPU cores inside a single physical CPU, have the benefit of giving users more performance at less cost. Moreover, it can significantly reduce the performance and power consumption ratio, which has a positive significance for enterprise users to save the use cost.

2. How many types of servers are there according to the structure?

At present, servers can be divided into tower type, rack type and blade type according to the shape and structure.

Tower server

General tower server chassis and we commonly used PC chassis about the same, and large tower chassis is much larger, generally speaking, there is no fixed size.

Rack server

Rack servers meet the requirements of intensive deployment of enterprises. The standard width of rack servers is 19 inches, and the height ranges from 1U to several U. Putting servers on racks not only facilitates routine maintenance and management, but also prevents unexpected failures. First, placing the server doesn’t take up too much space. Rack servers are neatly arranged in racks without wasting space. Secondly, connectors and so on can be neatly placed in the rack. Cables such as power cables and LAN cables can be arranged in the cabinet to reduce the accumulation of cables on the ground and prevent the occurrence of accidents such as kicking off the cables.

The specified dimensions are the width (48.26cm=19 inches) and height (a multiple of 4.445cm) of the server. A rack that meets this requirement is sometimes referred to as a “19-inch rack” because it is 19 inches wide.

Blade server

Blade server is a HAHD(High Availability, High Density) low-cost server platform designed for extraordinary application industries and High Density computer environments, where each “blade” is actually a system motherboard, similar to individual servers. In this mode, each motherboard runs its own system, serving different groups of designated users, with no relationship to each other. However, you can use system software to assemble these motherboards into a server cluster. In cluster mode, all motherboards can be connected to provide a high-speed network environment, share resources, and serve the same user group.

3. What is “U”?

What is the “U” in a 1U or 2U server? Does it mean the number of server processors?

Answer: “U” in the server world refers specifically to rack server thickness, which is a unit of external dimensions of a server. It is an acronym for unit, determined by the Electronics Industry Association (EIA), an industry body.

The server dimensions are specified so that the server is kept at the right size to fit on an iron or aluminum rack. The rack has a screw hole to fix the server. Align it with the screw hole of the server and fix it with screws.

The basic unit of thickness is 4.445cm. 1U is 4.445cm, and 2 u is 8.89cm, twice as much as 1U. In other words, a 1U rack server is a 4.445cm thick server that meets EIA specifications.

4. What is the difference between a server and a workstation?

The server is to provide various services to the workstation, network communication services, file sharing services, hardware sharing services, all kinds of resource services. The workstation can also help the server with tasks such as fractional computation while obtaining various resources of the server.

Servers and workstations are high-performance computers, but relatively, servers focus on data throughput capacity, so support more peripherals (hard disks, I/O slots, etc.); And workstation focuses on graphics processing ability, so peripherals are relatively a few less, but use the architecture that is designed especially for graphics processing, use high-grade display card, support 3D image processing. The workstation is mainly used in various design and multimedia production fields