Migrating from on-premises to the cloud is often fraught with unexpected problems, which can easily lead to unexpected expenses as well. What appears to be a simple act of lifting and shifting servers and data into virtual infrastructures becomes bogged down in a morass of issues—followed by demands to repatriate services back to your data center.
Chalk it up to a fundamental disconnect between on-premises architectures and cloud architectures. On-premises systems are all about getting the most out of hardware, often running a single service on a single server.
