Need to know the basic issues of server technology?

[Langward]

Today, we are concerned that Servers Basic knowledge of several issues, but also confused the server space. See I am a beginner to this field server technology and I want to know the issues related to this server technology if possible the solutions for the same. I will thankful for the related replies.

[Milton.J]

Often heard that dual-Xeon XX servers, and recently appeared in dual-core Xeon, are twoCPU, Is not equivalent to dual dual-core?

It is not:

Regardless of the server's single, dual, four and even eight-way, where the "road" refer to the physical serverCPUThe number, that is, the serverMotherboardOnCPUThe number of slots.
The recent emergence of dual-coreProcessorIs to a physical CPU package within twoCPUCoreThis benefit is the ability to allow users to increase the cost of not more than the premise, with stronger performance. And be able to compare a significant reduction in performance per watt, which use cost savings for enterprise customers have a positive meaning.

[Spyrus]

In many servers, there are take to make Xeon processors, but also take as a Pentium 4 processor, in addition to using Pentium 4ProcessorThe server products it cheaper, Xeon and Pentium what the difference?
Intel Pentium 4 631 3.0GHz (box)
Intel Xeon 3.2G (800MHz/2M / box)

One difference between the Intel Pentium 4 processor began, they put a Pentium 4 processor, owned by an individual processor, the user can not be two Pentium 4 processor architecture 2-way server systems, while developing higher-performance Xeon processor computing device. Xeon Processor Is divided into Xeon DP (maximum support dual processing) and Xeon MP (maximum support 8-way processing).

The difference is that two different second-level cache. Xeon-2 cache is 1MB ~ 16MB, P4 of the second-level cache is 512KB ~ 1MB, while the second-level cache server processing capacity in determining the effectiveness of important factors.

[Snake08]

The server in the structural division, there are several types?
At present, classified according to shape the structure, the server can be divided into tower, rack and blade three types.
General tower server chassis, and we often use the PC chassis is similar to the large tower Chassis should a lot of thick, on the whole there is no fixed standard dimensions.

[Zachary]

Rack-mounted servers are due to meet the business-intensive to deploy, formed by 19-inch rack as a standard width of the server type, height from 1U to several U. Placed on the server rack is not only conducive to ongoing maintenance and management, is also possible to avoid unexpected failures. First of all, place the server does not take up too much space. Rack server rack neatly emissions will not be wasting space. Secondly, the connection lines can also be received into the rack neatly inside. Power Line and LAN lines, the whole fabric can be a good line in the cabinet, can reduce the accumulation of cable on the ground in order to prevent foot kicked away wires and other accidents.

[Big Fish]

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, each of which a "razor blades" is actually a system motherboard, similar to a separate server. In this mode, each one motherboard to run its own system, to serve different user groups specified, there is no correlation between them. However, you can use the system software sets into one of these motherboards server cluster. In the cluster mode, all of the motherboard can be connected together to provide high-speed Network the environment, can share resources for the same user base.