Abstract
The public cloud presents a new economic model on computing - "pay as you go" model in which you pay only for what you consume, buy you pay for everything: compute, storage, networking, QoS and more. This model suggests new considerations for applications architecture that minimize cost considerations, The presentation discusses why we need storage application on public cloud, the new architecture considerations (some of the discussion is applicable for all types of applications) and present several alternatives that can reduce the cost of storage applications in the cloud