A Black Falcon
Member
I don't think this has been posted...
That 90% number refers to that apparently the average internet company data center server is only actually using 6 - 12% of its processor capacity at any one time, but it's using 100% of its electricity at all times. And there are huge numbers of data centers now, all over the country.
Plus, as an added bonus for even more wasted power, huge amounts of diesel exhaust from the backup generators all data centers run as backup for if the electricity goes out. They're not all running at all times, but do have to run occasionally, or for testing, and create a lot of pollution. Yeah, not good. I wonder, will anything be done about this sometime? This kind of power waste can't continue...
Here's the article. It's six pages long, so I won't quote the whole thing. It's very interesting, read it.
http://www.nytimes.com/2012/09/23/t...belying-industry-image.html?pagewanted=1&_r=0
Some choice sections from the full article:
(but read the full thing too!)
That 90% number refers to that apparently the average internet company data center server is only actually using 6 - 12% of its processor capacity at any one time, but it's using 100% of its electricity at all times. And there are huge numbers of data centers now, all over the country.
Plus, as an added bonus for even more wasted power, huge amounts of diesel exhaust from the backup generators all data centers run as backup for if the electricity goes out. They're not all running at all times, but do have to run occasionally, or for testing, and create a lot of pollution. Yeah, not good. I wonder, will anything be done about this sometime? This kind of power waste can't continue...
Here's the article. It's six pages long, so I won't quote the whole thing. It's very interesting, read it.
http://www.nytimes.com/2012/09/23/t...belying-industry-image.html?pagewanted=1&_r=0
Some choice sections from the full article:
(but read the full thing too!)
Most data centers, by design, consume vast amounts of energy in an incongruously wasteful manner, interviews and documents show. Online companies typically run their facilities at maximum capacity around the clock, whatever the demand. As a result, data centers can waste 90 percent or more of the electricity they pull off the grid, The Times found.
To guard against a power failure, they further rely on banks of generators that emit diesel exhaust. The pollution from data centers has increasingly been cited by the authorities for violating clean air regulations, documents show. In Silicon Valley, many data centers appear on the state governments Toxic Air Contaminant Inventory, a roster of the areas top stationary diesel polluters.
Worldwide, the digital warehouses use about 30 billion watts of electricity, roughly equivalent to the output of 30 nuclear power plants, according to estimates industry experts compiled for The Times. Data centers in the United States account for one-quarter to one-third of that load, the estimates show.
Even running electricity at full throttle has not been enough to satisfy the industry. In addition to generators, most large data centers contain banks of huge, spinning flywheels or thousands of lead-acid batteries many of them similar to automobile batteries to power the computers in case of a grid failure as brief as a few hundredths of a second, an interruption that could crash the servers.
That secrecy often extends to energy use. To further complicate any assessment, no single government agency has the authority to track the industry. In fact, the federal government was unable to determine how much energy its own data centers consume, according to officials involved in a survey completed last year.
The survey did discover that the number of federal data centers grew from 432 in 1998 to 2,094 in 2010.
Today, roughly a million gigabytes are processed and stored in a data center during the creation of a single 3-D animated movie, said Mr. Burton, now at EMC, a company focused on the management and storage of data.
Just one of the companys clients, the New York Stock Exchange, produces up to 2,000 gigabytes of data per day that must be stored for years, he added.
EMC and the International Data Corporation together estimated that more than 1.8 trillion gigabytes of digital information were created globally last year.
It is absolutely a race between our ability to create data and our ability to store and manage data, Mr. Burton said.
About three-quarters of that data, EMC estimated, was created by ordinary consumers.
With no sense that data is physical or that storing it uses up space and energy, those consumers have developed the habit of sending huge data files back and forth, like videos and mass e-mails with photo attachments. Even the seemingly mundane actions like running an app to find an Italian restaurant in Manhattan or a taxi in Dallas requires servers to be turned on and ready to process the information instantaneously.
Nationwide, data centers used about 76 billion kilowatt-hours in 2010, or roughly 2 percent of all electricity used in the country that year, based on an analysis by Jonathan G. Koomey, a research fellow at Stanford University who has been studying data center energy use for more than a decade. DatacenterDynamics, a London-based firm, derived similar figures.
The industry has long argued that computerizing business transactions and everyday tasks like banking and reading library books has the net effect of saving energy and resources. But the paper industry, which some predicted would be replaced by the computer age, consumed 67 billion kilowatt-hours from the grid in 2010, according to Census Bureau figures reviewed by the Electric Power Research Institute for The Times.
Direct comparisons between the industries are difficult: paper uses additional energy by burning pulp waste and transporting products. Data centers likewise involve tens of millions of laptops, personal computers and mobile devices.
The Viridity tests backed up Mr. Stephenss suspicions: in one sample of 333 servers monitored in 2010, more than half were found to be comatose. All told, nearly three-quarters of the servers in the sample were using less than 10 percent of their computational brainpower, on average, to process data.
The data centers operator was not some seat-of-the-pants app developer or online gambling company, but LexisNexis, the database giant. And it was hardly unique.
McKinsey & Company, the consulting firm that analyzed utilization figures for The Times, has been monitoring the issue since at least 2008, when it published a report that received little notice outside the field. The figures have remained stubbornly low: the current findings of 6 percent to 12 percent are only slightly better than those in 2008. Because of confidentiality agreements, McKinsey is unable to name the companies that were sampled.
A company called Power Assure, based in Santa Clara, markets a technology that enables commercial data centers to safely power down servers when they are not needed overnight, for example.
But even with aggressive programs to entice its major customers to save energy, Silicon Valley Power has not been able to persuade a single data center to use the technique in Santa Clara, said Mary Medeiros McEnroe, manager of energy efficiency programs at the utility.
Its a nervousness in the I.T. community that something isnt going to be available when they need it, Ms. McEnroe said.
Terry Darton, a former manager at Virginias environmental agency, said permits had been issued to enough generators for data centers in his 14-county corner of Virginia to nearly match the output of a nuclear power plant.
Some industry experts believe a solution lies in the cloud: centralizing computing among large and well-operated data centers. Those data centers would rely heavily on a technology called virtualization, which in effect allows servers to merge their identities into large, flexible computing resources that can be doled out as needed to users, wherever they are.
Others express deep skepticism of the cloud, saying that the sometimes mystical-sounding belief in its possibilities is belied by the physicality of the infrastructure needed to support it.
Using the cloud just changes where the applications are running, said Hank Seader, managing principal for research and education at the Uptime Institute. It all goes to a data center somewhere.
Some wonder if the very language of the Internet is a barrier to understanding how physical it is, and is likely to stay. Take, for example, the issue of storing data, said Randall H. Victora, a professor of electrical engineering at the University of Minnesota who does research on magnetic storage devices.
When somebody says, Im going to store something in the cloud, we dont need disk drives anymore the cloud is disk drives, Mr. Victora said. We get them one way or another. We just dont know it.