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Updated: April 20, 2011 09:14 IST

Reliability in a cloud

D. Murali
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The intro chapter of ‘Google Apps Deciphered: Compute in the cloud to streamline your desktop’ by Scott Granneman (www.pearsoned.co.in) opens not with Google but with Microsoft Office, describing it as the undisputed 800-pound gorilla in the office suite jungle, with millions of users and billions of dollars in sales. “However, as we saw in King Kong, even the mightiest gorilla can be hurt by enough buzzing planes. If one of those planes is actually a mighty jet named Google, then good ol’ Kong may be facing more trouble than he’s anticipated,” adds Granneman.

Stating that every person who starts using Google Apps is potentially one less customer for Microsoft, he foresees a long-term loss of market share for the latter. “Microsoft has finally woken up to the fact that software and services are inexorably moving to the Net, and it has responded with its own attempts in this area, called Microsoft Online Services.”

Yet, in Microsoft’s involvement, what the author sees is the continued practice of the ‘software plus services’ model, where online tools still require the use of software running on a PC to work. “This protects Microsoft’s cash cows, Windows and Office, first and foremost, while allowing the company to trumpet its participation in moving online as well.”

Network is the computer

A section on ‘cloud’ traces how the idea – spoken of decades ago by Sun co-founder John Gage when he proclaimed that ‘the network is the computer’ – has finally reached a period of reality and even hyper-growth thanks to the spread of reliable high-speed Internet access coupled with the virtually limitless supplies of computer storage and processing power. As it gets cheaper and cheaper for companies such as Google and Amazon to build out massive server farms and then connect those mind-bogglingly powerful resources to users across the world via the Net, new and exciting technologies become possible, the author notes.

Taking up the question of reliability, which is often posed by users in the context of cloud, Granneman concedes that even the mighty Google has stumbled, as in July 2008, for example, when Google Docs was unavailable to many users for an hour or so. His defence, though, is that virtually all companies have suffered downtimes, ranging from eBay to Amazon to Royal Bank of Canada to AT&T. “This is simply a fact of life. Downtimes will happen. Humans can attempt to plan for every eventuality, but mistakes, errors, and even natural events beyond our control intrude and cause problems.”

Illusion of control

An interesting psychological fact highlighted in the book is the ‘illusion of control’ commonly exhibited by humans. “For instance, we are far more likely to die in a car than on a plane, but people are often psychologically more comfortable driving in their cars than riding on planes due to the fact that drivers feel in control of the situation, while passengers may not.”

Likewise, many people feel safer running their own servers instead of outsourcing to Google because they want that feeling of control over their machines and their data, the author observes. “However, Google now offers a service level agreement (SLA) for the Premier Edition of Google Apps that guarantees 99.9 per cent uptime for Gmail (that means about 9 hours of downtime a year)…”

Educative reference.

**

Tailpiece

“Our CTO has been regularly complaining of a disturbing dream.”

“That the machines go down all of a sudden?”

“No, that the users unite in revolt against the systems support!”

**

BookPeek.blogspot.com

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