From the course: Microsoft Azure Solutions Architect Expert (AZ-305) Cert Prep by Microsoft Press
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Introduction to disaster recovery principles - Azure Tutorial
From the course: Microsoft Azure Solutions Architect Expert (AZ-305) Cert Prep by Microsoft Press
Introduction to disaster recovery principles
Through this course, we've looked at how two architect solutions are resilient to failures or outages. Sometimes this involves duplicating components such as virtual machines, web apps, and even databases. And we might want to duplicate systems within a region to protect against hardware or individual data center failures or even cross-region to protect against entire region outages. However, this comes at a financial cost. Doubling up on a database or a VM means doubling your costs as well. Sometimes the cost of an outage outweighs the cost of duplicate components. Now, for systems that are not critical or maybe don't need to be running 24/7 potential downtime may be preferable to an increase in hosting costs. So when determining the balance between cost and availability, we often ask the business to find two key metrics, a Recovery Point Objective or RPO and a Recovery Time Objective or RTO. The Recovery Time Objective defines…