Tom's IT Pro: "One of the greatest benefits of using public Cloud services is the reduced need for capital expenditures. There is no need to argue for large server budgets, slog through budget negotiations, and find room in your operating budget to maintain your new servers once they are in. If ever there were a case for hard to justify expenditures it would be for disaster recovery. Why should a business invest in substantial infrastructure that might be rarely used? It would seem that using public Cloud providers as disaster recovery sites would be an ideal match: you have access to the infrastructure you need when you need it without significant capital expenditures. On the surface it looks like a good match, and it is, if you understand and plan around 5 key success factors."