Today, organizations are buying cloud infrastructure services rather than on-premises hardware and software. For those companies running mission-critical SQL server environments, cloud vendors promise geographically distributed cloud data centers that make it easy to configure SQL server instances for high availability (HA) and/or disaster recovery (DR). This might be a good value proposition if your organization is setting up a new SQL server environment, or your hardware is nearing end-of-life (EOL). But what if you are heavily invested in a well-tuned, on-prem SQL server system that is servicing data to and from users? Moving everything to the cloud at once without the cloud experience may not seem prudent or even necessary to continue delivering ongoing user access to critical application data.