Azure Storage Redundancy Decision Tree

When evaluating which model to use, consider three main factors. First, balance cost versus availability: LRS is cheapest but offers the least protection, while GZRS offers the most at a higher price. Second, determine your replication needs: decide if you need protection only within a region (LRS/ZRS) or across regions (GRS/GZRS). Third, assess if your application needs read access during an outage, which would point you toward RA-GRS or RA-GZRS. To apply these models effectively, use separate storage accounts for data with different redundancy needs, have a clear disaster recovery plan that includes your failover strategy, and actively monitor costs, as higher redundancy levels and cross-region data transfers increase your expenses.