It is easy to get confused between HA and cost optimization objectives because product owners will often push for cost optimization while ignoring their availability requirements until something fails. As a standard practice, remember to always prioritize availability goals and only then look at ways to optimize your costs.
Achieving high availability can be costly. Therefore, it is important to ensure that you align your application's availability requirements with your business objectives. There are several options to achieve the level of availability that is right for your application. Hence, it is essential to start with a clearly defined set of availability objectives and then make the most prudent design choices to achieve those objectives at a reasonable cost. Typically, all systems' functionality and services do not need to achieve...
