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The requirement for Highly Available (HA) applications and services does not change during this migration adding to the burden that the target cloud infrastructure must provide equivalent mechanisms for High Availability. For example, CoSPs will still require 5NINES (99.999%) of availability for services; a feature that Telco customers rely upon. In addition, enterprises often rely on applications where a single second of unavailability could incur millions of dollars in lost revenue. For many large service providers and enterprises the public cloud is not an option due to cost or security issues. A private cloud infrastructure provider that can deliver a level of high availability expected by these large customers stands to acquire a large and loyal following. [Sunku → Is there a proof for this that we can add in reference section? alternatively we could make it easy and say private cloud is preferred over public cloud.]
Introduction
This paper ...
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