Communications of the ACM
Researchers Predict Advent of 'resource-as-a-Service' Clouds
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The cloud model of rented virtualized servers and storage on demand could be sold in a much more efficient and granular manner, with specific resources rented for just a few seconds at a time, according to Technion-Israel Institute of Technology researchers, who dubbed their model resource-as-a-service (RaaS).
"With the advent of Web hosting, clients could rent a server on a monthly basis," say the Technion-Israel researchers.
However, the hourly rental model will not be sufficient as the cloud market matures. "If you only pay for a full second or any part of it, then you will only waste half a second over the lifetime of every virtual machine," the researchers note.
Some cloud providers have begun selling sub-hour sections, as well as other infrastructure-as-a-service offerings, such as fixed bundles of computer power, memory, and networking resources. The researchers say that in a RaaS cloud, customers would purchase "seed virtual machines" containing a baseline of resources as well as an "economic agent" for adding additional capacity.
Cloud service providers' software also would incorporate economic agents to represent their own interests. "In the RaaS cloud, virtual machines never know the precise amount of resources that will be available to them at any given second," the researchers note.
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