A couple of weeks ago, I posted a blog dealing with a global study of Internet speed, where it was reported that the US is one of the few countries where the Internet is actually slowing down. On February 17, the Chairman of the FCC (Federal Communication Commission), Julius Genachowski, proposed a decade long program [...]
Continue reading...Monday, February 8, 2010
I was approached a couple of days ago by one of our large customers, a major food manufacturer, to help them design a testing cycle for an hand-held device, to scan barcodes on their product’s pallets, as they are being unloaded from supply trucks into their regional depots. The devices utilize a LAN based wireless [...]
Continue reading...Tuesday, December 22, 2009
In today’s Business section of the New York Times, there is an article by Brian Stelter (December 22, 2009) about a proposal by Apple computer to offer TV subscription packages via the Internet. The article points out that ABC and CBS are actively considering joining the Apple venture. Disney, who owns ABC, was the first [...]
Continue reading...Tuesday, December 8, 2009
The new buzzword around the IT block is “Cloud Computing”, the ability to avoid deploying costly infrastructure on each location by contracting a “virtual” infrastructure environment from dedicated vendors. Need to expand? Just call your provider and double your server capacity and triple your storage. However, we may need to apply a sobriety test, where [...]
Continue reading...Tuesday, December 1, 2009
I/ITSEC Conference Orlando 2009 November 30 – December 4 Orange County Convention Center Orlando, Florida Stop by the Shunra Booth #2715 Understanding our network is even more critical then ever before, yet we often guess on how applications will perform when rolled out across the network. Military IT organizations use Shunra’s virtual network solutions to [...]
Continue reading...Thursday, November 5, 2009
In the previous post we identified the Wide Area Network and the impairments that it introduces as a key reason for why a local user (let’s say in NYC) experiences a faster application than a user that is remote to his datacenter (let’s say in Tokyo). I also presented a question to the group: “We [...]
Continue reading...Tuesday, October 13, 2009
This series of posts is about the day after a data center move. Now that the data center is remote, how does this paradigm shift impact the way we should develop, test, deploy, monitor and troubleshoot applications. I will try to cover as many topics as possible, but the main focus is still going to be around the role application performance management plays in this new paradigm.
Continue reading...Thursday, September 17, 2009
In the previous post http://www.shunra.com/shunrablog/index.php/2009/08/14/data-center-relocation-questions-and-answers-part-1/ I presented an example of a common performance problem with applications that host executables on a remote shared drive. As common as that problem is, it is usually a legacy problem, most new applications follow a more best practices architecture usually involving a web based front end for the application. [...]
Continue reading...Monday, August 24, 2009
Impact on Enterprise Application Performance In the current economic environment where growth is tough to come by, Business Ethernet Service (aka Carrier Ethernet, Metro Ethernet) is bucking the trend. A recent analyst report confirms the uptick in growth of these services for Business Applications: Source: Vertical Systems Group, March 2009 Service providers are reaching critical [...]
Continue reading...Thursday, August 20, 2009
Examples of latency sensitive applications In the previous post http://www.shunra.com/shunrablog/index.php/2009/08/14/data-center-relocation-questions-and-answers-part-1/ I shared some of the questions that clients typically ask me during the performance analysis service in a data center relocation project. One of the most popular question, especially at the beginning of the project is “which applications are the most sensitive to network latency?”. [...]
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Friday, February 19, 2010
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