Azure Backup offers two types of replication:
- Locally redundant storage (LRS) replicates your data three times (it creates three copies of your data) in a paired datacenter in the same region. LRS is a low-cost option for protecting your data from local hardware failures.
Geo-redundant storage (GRS) replicates your data to a secondary region (hundreds of miles away from the primary location of the source data). GRS costs more than LRS, but GRS provides a higher level of durability for your data, even if there is a regional outage. (6 copies of your data)