If you’re in an IT professional or follow developments at all in this field, you’ve undoubtedly been noticing an almost endless amount of media coverage and online discussion lately about “cloud computing” — one example being a front page story in The Wall Street Journal yesterday. But, even if you’re just an Internet consumer, you too are hearing your share of the hype. After all, many consumer Internet applications are also now accessed “in the cloud,” as opposed to being software you install on your own computer — Google’s Gmail probably being the best example.
Well, one local entrepreneur, George Reese, is right smack in the middle of all this buzz, and is in a position to help clear up a lot of the confusion about it — especially for enterprises looking to take advantage of the economic benefits of this form of computing. 
His new book on the subject is scheduled to be released by O’Reilly on April 10. It’s entitled “Cloud Application Architectures: Building Applications and Infrastructure in the Cloud.” (And here’s the Amazon link.) George is a Minneapolis-based technologist and startup founder. I’ve known him since late 2006 and thought it would be interesting to get his thoughts on this very hot topic, and hear the story behind his book. This is an interview I conducted with George earlier this week, which first appeared on the cloud computing site Cloud Ave.
Graeme: How long have you been involved with cloud computing, and what made you decide to write this book?
George: I suppose that depends on what you mean when you say “cloud computing.” I’ve been developing SaaS [software as a service] systems for the past five years, but got into Amazon Web Services and Infrastructure as a Service in late 2007 when my company Valtira needed an alternate approach to a high-availability infrastructure. During this time, I’ve developed a body of experience in putting transactional database applications into the Amazon Cloud. My editor at O’Reilly, with whom I’ve written several books in the past, heard I was doing cloud work and asked me to put together a book on the subject.
Graeme: Why is cloud computing gaining adoption like it is? What is its attraction? We know Internet and IT startups love it, but do you think it will catch on in any significant way with larger enterprises?
George: The primary attractions to cloud computing are cost and flexibility. Cloud computing enables you to build out a world-class IT infrastructure with no up-front capital investment and pay for the growth of your infrastructure as the business it is supporting grows.
I believe enterprise IT has a strong need for the benefits of cloud computing, but they have higher expectations with respect to reliability and scalability than startups. My company enStratus is all about dealing with these two concerns for enterprise IT, and I talk a lot about that in the book.
Graeme: For what types of readers did you primarily write the book? What will they get from it that they can’t get elsewhere?
George: The book is for people tasked with making the move into the cloud and guiding them through that move. I start by establishing what the cloud means from my perspective and what its value is to an organization. The book covers how you evaluate what makes sense to move into the cloud and, once the decision is made, the security, availability, and disaster recovery planning necessary to operate at an enterprise level in the cloud.
Graeme: Do you deal in the book with the issue of choosing a cloud computing provider? In not, why not? Do you attempt to compare providers?
George: No. Anything I might say in the way of a comparison would be out of date by the time the book hit the shelves. Jeff Barr from Amazon reviewed the book for technical accuracy, and E.J. Johnson from Rackspace and Randy Bias from GoGrid both provided appendices describing their offerings.
Graeme: What are some of the other key issues you deal with in the book, such as security and reliability of the cloud? And what does the book deliver that’s not available elsewhere?
George: Given my role at enStratus, cloud security and reliability are obviously key concerns of mine. I spend an entire chapter on security issues and cover how to architect your applications for maximum availability throughout the book. I have not seen much of this kind of talk available on the Internet; mostly warnings about how security and availability are things you should worry about.
Graeme: Readers of the book will also learn about the management tools you have developed for use in your own company, Valtira, which offers a SaaS marketing platform. Please tell us how those tools led to the formation of a separate, spinoff company.
George: Valtira was looking to build out a new service offering that required a high-availability infrastructure. We priced out a managed services infrastructure to support our needs, but that proved too costly for a new product offering. We then turned to the Amazon cloud to see if it would meet our needs. We ran into a number of obstacles along the way. Some of these obstacles have since been addressed by Amazon through new service offerings like Elastic Block Storage. For other obstacles, we built out tools to take care of things. It turns out that people who were not Valtira customers really wanted our tools, so we spun them out into enStratus.
Graeme: You began working on the book many months ago. The release of the book seems now to be right at a time of intense focus on cloud computing, undoubtedly driven in part by current economic conditions. What’s your take on all the hype?
George: Cloud computing is the most disruptive technology to hit business since the Web. It’s not hype. Like any disruptive technology, however, there’s a lot of misinformation flying around. To make matters worse, every person has a different internal definition of “the cloud” that frames their discussions on the subject. So, the hype is warranted, but everyone needs to pay particular attention to context and definitions in their discussions.
Graeme: With the book’s release, your speaking schedule is naturally heating up. Please tell us where people can find you in coming weeks and months.
George: Well, first, I’ll be presenting at CloudCamp in New York City on April 1. Following that, O’Reilly has a webcast scheduled for April 8 on “Getting Started with Amazon Web Services.” In Minneapolis, I’ll be speaking at the Minnesota High Tech Association’s spring conference on April 15, and then at CloudCamp Minneapolis/St. Paul on April 18 at the U of MN. Recently, my company enStratus was chosen as a presenting startup at the Under the Radar conference in Mountain View, CA, on April 24. The following month, I’ll be speaking on the topic of information privacy and security in the cloud at the Glue Conference in Denver on May 12. Then it’s off to London, where I’ll be speak on May 15 at WebTech Exchange 2009 on the topic of hardening an EC2 infrastructure.
Graeme: That definitely qualifies as a whirlwind, George! Thanks for taking some time to tell us about your book, and I look forward to seeing you at some of these upcoming events.
(Disclosure: the author has a consulting relationship with George Reese’s company enStratus.)