Azure Backup Storage Redundancy Options

Backup storage redundancy protects your data against hardware failures, power outages, or natural disasters. Azure offers several redundancy options. Locally Redundant Storage (LRS) stores three copies of your data within a single datacenter, protecting against local hardware failures. Zone-Redundant Storage (ZRS) distributes copies across multiple availability zones within an Azure region, protecting against an entire zone going down. Geo-Redundant Storage (GRS) replicates your backups to a secondary Azure region, so you can restore even if the primary region fails completely. GRS is the default for many services and is critical for disaster recovery scenarios.