วันเสาร์ที่ 27 กรกฎาคม พ.ศ. 2556

Data Center Facebook

      Facebook is seeking an expert facility operations engineer to join our data center operations team. Our data centers serve as the foundation upon which our software operates to meet the demands of our customers. The suitable candidate will work with the management team to facilitate operating and maintaining the data center. The candidate will need to be experienced in diverse industries such as electrical generation, electrical distribution, cooling technologies and fire suppression systems.build a world-class facility in our new Data Center in Lulea, Sweden. This role will be based in Dublin, Ireland.
          
FBDataCenter01 Центр обработки данных Facebook возле Полярного круга
      There are the many of HDD. Prepare to        a large server.Facebook Guide believe that Lulea is likely to be one of the most efficient and sustainable data centers in the world. There are a fan for colling down the server by get the cold air from outside come and gone.All the equipment in the center provides electricity to the local hydroelectric power plant that runs on renewable energy, thus reducing the number of backup generators for more  than70%.  
FBDataCenter12 Центр обработки данных Facebook возле Полярного круга      In addition to the energy of the water,the center is also used by the northern cold air to cool the servers that store photos, videos,  comments and "likes." Any excess heat is used to maintain a comfortable temperature in offices. Almost all of the technology at the center, from servers to power distribution systems, based on the work of Open Compute Project - community of engineers from around the world, which is engaged in designing storage centers. The ventilators can never work in the cold season. Because they will use the cold weather coming in and going out to travelling the hot tempurator from database to outside.

Data Center Google

          The Google Modular Data Center is a set of shipping containers used by Google to house its servers. They were revealed on April 1, 2009, during the first Google Data Center Efficiency Summit in Mountain View, California. The data centers are rumored to cost $600 million USD each, and use from 50 to 103 megawatts of electricity. They house the computing resources that comprise the Google platform.
Inside the internet 5 Дата центры Google 
                                                                                   
      Google was reported in November 2005 to be working on their own shipping container datacenter. Although in January 2007 it was reported that the project had been discontinued, Google's patent on the concept was still pushed through the patent system and was successfully issued in October 2007. In 2009 Google announced that their first container based data center  has been in production since 2005.                                                                                    
Inside the internet 7 Дата центры Google
       Google has provided us with a rare opportunity to see their data centers around the world, thanks to which every day we can use the services of this global Internet company. This is a real maze of servers that handle online queries into a search engine, show us a video on YouTube, and deliver emails to millions         of people. Hundreds of thousands of servers, colorful cables and even bicycles to move the employees of the centers - in this collection you will find and data centers in the former paper mill in Finland, and specially designed server centers in Iowa, USA.  

Computer Network

"Computer networks" redirects here. For the periodical, see Computer Networks (journal).   
"Datacom" redirects here. For other uses, see Datacom (disambiguation).
         A computer network (or data network) is a telecommunications network that allows computers to exchange data. The physical connection between networked computing devices is established using either cable media or wireless media. The best-known computer network is the Internet.
     Network devices that originate, route and terminate the data are called network nodes. Nodes can include hosts such as servers and personal computers, as well as networking hardware. Two devices are said to be networked when a process in one device is able to exchange information with a process in another device.
      Computer networks support applications such as access to the World Wide Web, shared use of application and storage serversprinters, and fax machines, and use of email and instant messaging applications. The remainder of this article discusses local area network technologies and classifies them according to the following characteristics: the physical media used to transmit signals, the communications protocols used to organize network traffic, along with the network's size, its topology and its organizational intent.

Home network

          home network or home area network (HAN) is a residential local area network (LAN)   for communication between digital devices typically deployed in the home, usually a small number of personal computers and accessories, such as printers and mobile computing devices. An important function is the sharing of Internet access, often a broadband service provisioned by fiber-to-the-home or via Cable Internet access, Digital Subscriber Line (DSL) or mobile broadband by Internet service providers (ISPs). If an ISP only provides one IP address, a router including network address translation (NAT), proxy server software and typically a network firewall, allows several computers to share the external IP address. The router function may be assumed by a PC with several network interfaces, but a dedicated router device is more common, often including a wireless accesspoint, providing WiFi access.