The cloud is supposed to save you money, right? No infrastructure of your own to manage, a leaner IT staff on-site, etc. But running a production workload in the cloud can be costly — particularly if you’re configuring SQL Server for high availability (HA). In an HA scenario, where you’re expecting to have your SQL Server system available no less than 99.99% of the time, you encounter the cost of maintaining two or more instances of your SQL Server configuration in geographically separate data centers, but you may also incur costs you were not expecting (such as costs arising from the movement of data between the regional data centers if you’ve placed your failover infrastructure at a different region).
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