If we see at azure portal you will able to to see four types of redundancy. these are –
Locally Redundant Storage (LRS)
LRS ensures that data is replicated synchronously within the same data center to provide redundancy within a single facility.
Zone-Redundant Storage (ZRS)
ZRS replicates data synchronously across three availability zones within a single region, providing higher availability and durability than LRS.
Geo-Redundant Storage (GRS)
GRS provides additional redundancy by replicating data asynchronously to a secondary region, which can be hundreds of miles away from the primary region. In case of a regional outage, data can be quickly recovered from the secondary region.
Geo-Zone-Redundant Storage (GZRS)
GZRS provides the highest level of redundancy by replicating data synchronously across three availability zones within two regions, and then asynchronously to a secondary region, providing a combination of low-latency and high durability.
But there is one more redundancy is there that is Read-Access Geo-Redundant Storage (RA-GRS).
Read-Access Geo-Redundant Storage (RA-GRS)
RA-GRS provides the same redundancy features as GRS, but also allows read access to the secondary region, enabling you to use it for disaster recovery or data access.
