If your company needs a single server that will be installed somewhere in the accounting department or in a warehouse, you will probably want a tower model with quiet cooling, but with decent performance that will be enough for the database and for file exchange. All of this is available in the SL2500 model with two Intel Xeon processors, 8 hard drives and a discrete RAID controller. One of the most important properties of a server is its noise level, because this model is quieter than many desktops.

Servers with low power consumption are a relatively new word on the server market, because in addition to traditional tasks assigned to server equipment, such as databases, organizing file access, new tasks have appeared that are more profitable to solve on physical entry-level servers. For example, office telephony, access control systems, corporate mail or a general work organizer. An Intel Atom-based server like the one we'll be looking at today is ideal for such solutions.

Facebook is an innovative company in itself, and it's no wonder that they didn't just buy hundreds of servers to run their service. They have improved the memcached caching technology, and now the company's engineers are developing a new type of server that will be optimal for large cloud services - cheap, reliable and efficient. Innovations such as new cabinet heights, dual-input power supplies, lack of remote monitoring systems seem absurd today.

A $ 30K 56kg machine is 4 servers in one case, each with 2 AMD Opteron 6174 processors. Thus, the highest density is achieved in a 2U case - 96 physical cores and 512GB memory, plus each node has a built-in 40G InfiniBand controller, making it an ideal machine for math calculations and HPC applications. We'll look at how it all works in our article.

In this article, we will tell you about the 4-processor Dell PowerEdge R810 server, which has a complex modular layout that allows you to easily replace a failed block entirely. This server uses FlexMem Bridge technology, thanks to which all the server's memory slots become available to the customer, even if two processors out of four are installed. And, of course, the proprietary iDRAC control system and all those little things that classify such servers as elite.

Dell servers are known primarily for their customers - the largest American corporations, including government organizations, use Dell equipment. And for any customer, the Dell symbol is a sign of excellence in quality control, performance, functionality and service support. This article is a quick guide to the Dell server models available in early 2011.