To maintain the high availability of your data as well as storage, Azure Backup supports three methods of backup-
i. Locally redundant storage (LRS) copies your data three times in a centralized storage unit within the same region. LRS is a cost-effective option for safeguarding data against local hardware breakdowns.
ii. Geo-redundant storage (GRS) is the standard and preferred backup mode that replicates your data to a secondary region far away from the primary location of the source data. GRS is more expensive than LRS, but it provides greater data resilience, even in the event of a local disruption.
iii. Zone-redundant storage (ZRS) backs up data in availability zones, ensuring data retention and durability in the same zone. You can back up your essential activities that involve data retention and must run without disruption since ZRS has zero latency.
