Data redundancy options
Locally redundant storage

Designed to provide at least 99.999999999% (11 9’s) durability of objects over a given year by keeping multiple copies of your data in one data centre.

Zone redundant storage 

Designed to provide at least 99.9999999999% (12 9’s) durability of objects over a given year by keeping multiple copies of your data across multiple data centres or across regions.

Geographically redundant storage 

Designed to provide at least 99.99999999999999% (16 9’s) durability of objects over a given year by keeping multiple copies of the data in one region, and asynchronously replicating to a second region.

Read-access geographically redundant storage 

Designed to provide at least 99.99999999999999% (16 9’s) durability of objects over a given year and 99.99% read availability by allowing read access from the second region used for GRS.



For more details on redundancy options and how they can be used for high availability, please refer to the Azure Storage replication. Please note that not all redundancy types are available for all storage types.