SPONSORED:This sponsored post is produced by Rackspace. “By 2015, according to Gartner research, 50% of large global enterprises will rely on external cloud computing services for at least one of their top 10 revenue-generating processes.” If you’re considering moving to a managed cloud — a solution where the vendor actively manages, patches, and troubleshoots your cloud environment—chances are that total cost of ownership (TCO) is the driving factor in your decision-making.