Last week, I presented eBay’s cloud adoption strategy in my keynote address at the Cloud Connect conference. The presentation was tongue-in-cheek titled Cloud Bursting for Fun and Profit, but it did make a real case for leveraging a hybrid approach to data center operations. (“Hybrid” means a mix of public and private compute resources.)
Our case study on eBay’s move toward a public cloud was well received by the cloud community. The talk took attendees through a session on “cloudonomics,” converting the theoretical understanding of “own the base, rent the spike” into an equation with candid, real-world eBay numbers for traffic, capacity distribution, computational units, and, of course, the profit part! We demonstrated how, despite the high per-unit cost of the public cloud (even at 4 times more expensive than private data centers), eBay’s use projections still indicated a potential savings. Savings come from both distributing load across both private data centers and the public cloud, as well as leveraging the cost trade-off of renting private cloud space by a significant reduction in the cost of ownership and maintenance of private data centers.


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