วันอาทิตย์ที่ 25 สิงหาคม พ.ศ. 2556

Facebook data  center

Facebook's first European data center in Lule, Sweden (near theArctic Circle) is now online, and thus far it's the only facility that's exclusively using servers the company itself designed. Similar to the social network's North Carolina complex that served as testing ground for its outdoor air-cooling configuration, the Swedish facility takes advantage of the region's frigid winds. Excess heat produced by the machines is then routed to offices to keep employees warm in the chilly region. The firm claims the 900,000-square-foot center is powered entirely by hydroelectric energy -- a source so reliable that Facebook saw it fit to scale down the number of backup generators by more than 70 percent. With an average power usage efficiency (PUE) of 1.07, the servers should consume 1.07 watts of energy for each watt they need to function pointing to minimal energy loss. Now that theLuleå installation is complete and operational, the company can focus on building its $1.5 billion megastructure (its biggest data center yet) in Altoona, Iowa.
As much as it's important to have every component of a PC stuck together in a laptop, that same monolithic strategy is a major liability for server clusters: if one part breaks or grows obsolete, it can drag down everything else. Facebook and its Open Compute Project partners have just unveiled plans to loosen things up at the datacenter. A prototype, Atom-based rackmount server fromQuanta Computer uses 100Gbps silicon photonics from Intel to connect parts at full speed, anywhere on the rack. Facebook has also garnered support for a new system-on-chip connection standard, rather affectionately named Group Hug, that would let owners swap in new mini systems from any vendor through PCI Express cards. The combined effect doesn't just simplify repairs and upgrades -- it lets companies build the exact servers they need without having to scrap other crucial elements in the process. There's no definite timeframe for when we'll see modular servers put to work, but the hope is that a cluster's foundations will stay relevant for years instead of months.
Since breaking ground in Western North Carolina some 16 months ago, Facebook has been running at full speed to get its newest data center online. This week, Zuckerberg & Co. flipped the switch. The new facility, located in Forest City, touts the "first major deployment" of the outfit's Open Compute Project web servers and will be the first "live test" of the OPC's outdoor air-cooling design. It tends to get pretty warm around those parts and humidity levels are a bit outside of ideal data center conditions. The Carolina facility will mirror the projected power utilization effectiveness (PUE) of FB's Oregon data center at just a smidge above 1 – somewhere between 1.06 and 1.08 to be exact. In other words, this means the ratio of power used by the structure and the actual power sent to the hardware is almost perfect with minimal energy loss. No matter, it'll still be using plenty of power. A second identical building is slated to open on the site later this year, but for now, hit the source link for a bit more info on the initial launch.
Facebook has already set up shop in North Carolina and Oregon, but it's heading to Iowa for its next -- and biggest -- data center. According to the Des Moines Register, the town of Altoona will be home to a 1.4-million-square-foot facility (code-named Catapult), and it will reportedly be the "most technologically advanced center in the world." Why Altoona, you ask? The city is already home to several data hubs, as its fiber-optic cable system, access to power and water utilities and affordable land are big draws for companies. Facebook will complete project Catapult in two $500 million phases, though the entire cost will reportedly ring in at $1.5 billion. The social network is also seeking wind energy production tax credits, which is no doubt connected to its Open Compute Project for promoting energy efficiency. That's all we know so far; suffice to say a center this big won't be built overnight.
We know, you've seen an awful lot of Zuckerberg and crew here lately, and the Facebook news just keeps rolling in. This time the social networking giant is doing some sharing of a different sort by offering public access to the specifications and best practices behind its new, more efficient data center in Prineville, Oregon. According to the company, the center, built in collaboration with AMD, Dell, HP, and Intel, has boosted energy efficiency by 38 percent while lowering cost by 24 percent. The information now available through the Open Compute Project includes technical specs and mechanical CAD files for everything from servers to building design. Basically, if you want to erect your own multi-million dollar Facebook-style data center, you've got the go ahead. Full PR after the break. 
Facebook wasn't kidding when it said it wanted to build better backends for the digital world -- after sharing the plans for it's customized data center, it's looking to do the same with storage hardware. "We're taking the same approach we took with servers," Frank Frankovsky, Facebook's director of Hardware Design, told Wired. "Eliminate anything that's not directly adding value." Frankovsky says they are working on a completely tool-less design, eliminating the need for mounting screws and plastic handles on hot-plug driver carriers. The goal is to get the outfit's new storage digs to run as efficiently as its previous efforts, streamlining hardware to be more serviceable, cost less and use less energy. The new storage designs are set to debut at the Open Compute Summit in early May, and hopes that sharing the designs will help redefine how storage hardware is made. Check out the source link below for Wired's in-depth look at the project.

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