Trying to assess the size of any or all of the cloud computing market is like tacking Jello to the wall so thank God someone — Gartner(s it) — attempts it.

gartnerlogoIn a new report, the big researcher estimates that the public cloud market overall will grow 18.5 percent, to $131 billion, in 2017 from $111 billion in 2012. Under this broad umbrella term for public cloud services, Gartner includes the usual suspects — Infrastructure as a Service (IaaS) a la Amazon(s amzn) and the growing crowd of OpenStack-based public cloud providers.

The public cloud IaaS and file and storage represents the fastest growing part of public cloud services, growing 42.4 percent in 2012 alone to $6.1 billion. With growth accelerating to 47.3 percent, it’s expected to hit $9 billion in 2013. Gartner research director Ed Anderson said that’s happening as more companies go beyond the usual development and test…

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