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Main on April 11th, 2007 by Pingdom
When you need to transfer very large amounts of data over the internet, sooner or later you will hit a limit where it will actually be faster to send that data on disks over regular mail (often called sneakernet). Internet transfer rates are simply not enough for large data sets.
Imagine a company with two offices in different cities, perhaps even in different countries. Each office has a 100 megabit internet connection. If the company needs to send a large amount of data from one office to the other, theoretically a 100 megabit connection can muster about 45 gigabyte in one hour if there are no bottlenecks on the way. This ends up being just over one terabyte of data in 24 hours.
In other words, for anything larger than one terabyte, it would be faster for this company to just send the data on disks for over-night delivery.
What does Google do?
Google’s initiative to transfer all the Hubble space telescope data is a good case study. The Hubble data takes up 120 terabyte (120,000,000,000,000 byte). How does Google transfer it? Not over the internet. Instead they send actual physical disk arrays via regular mail, something they have dubbed, for fun, FedExNet. This allows them to get the data within 24 hours.
To transfer the same amount over the internet in 24 hours, Google would have to be able to achieve transfer rates of more than 11 gigabit/s running constantly maxed out. On a regular 100 megabit connection, transferring 120 terabyte of data would take almost four months (111 days).
Is Internet 2 the answer?
The basic point here is that the internet still needs a lot more capacity. How soon can we reach such massive transfer rates? There is hope at the horizon, but FedEx probably hopes the answer is “never.”
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Posted in
Main on February 6th, 2012 by Pingdom
The New England Patriots held what seemed to be a commanding lead (17-15) with five minutes left of Super Bowl XLVI last night. But the New York Giants came back and managed to win with 21-17.
As exciting as the game sounds, we missed the whole thing, instead spending our time watching the Superbowl.com website.
It turned out to be a rather dull thing to do because the site held up well and there was no downtime at all. The response time also didn’t give away anything significant in terms of online Super Bowl traffic.
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Main on February 3rd, 2012 by Pingdom
As Super Bowl 46 is approaching, fans will flock to the Lucas Oil Stadium in Indianapolis, Indiana, and to TV sets around the world to follow the New York Giants battle it out with the New England Patriots.
Kickoff is scheduled for 6:30EST on Sunday, February 5, and we’re already monitoring Superbowl.com to see how the site will handle the event.
What team will win Super Bowl 46? How will the site cope? We can only wait to find out.
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Posted in
Main on February 3rd, 2012 by Pingdom
Every Friday we bring you a collection of links to places on the web that we find particularly newsworthy, interesting, entertaining, and topical. We try to focus on some particular area or topic each week, but in general we will cover Internet, web development, networking, performance, and other geeky topics.h
This week we bring you a collection of articles focusing on cloud, with a few other topics thrown in to boot.
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Main on February 2nd, 2012 by Pingdom
Out of the 59 US-based e-commerce sites we monitored during the holiday season last year 28 scored a perfect 100% uptime for December.
Whether this helped spur on the booming sales in the US, we don’t know, but retail e-commerce spending in the US reached $37.2 billion for the November to December 2011 period. That was an increase of 15% from the same period in 2010.
We decided to dig into the numbers for these e-commerce sites to see how well they did in terms of uptime and performance. After massaging the data coming from our Pingdom probes, it turns out that the sites overall performed well during December 2011 in terms of uptime, but response time was an issue for several sites.
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Main,
Mobile podcast on February 2nd, 2012 by Pingdom
Pingdom’s Mobile Podcast is a weekly show about Internet, web, and mobile stuff.
In this show, Saleh also gives us an update on the pending submission of his Carbon for Windows Phone Twitter client. We’re also joined by Mario Lurig, who talks about using Amazon S3 and Cloudfront to speed up a website.
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