Redundancy in Azure Storage

By Mike from AzureGuru
Published in AZ-900 Training
October 22, 2020
1 min read

Data in an Azure Storage account is always replicated three times in the primary region. Azure Storage offers two options for how your data is replicated in the primary region:

  • Locally redundant storage (LRS) copies your data synchronously three times within a single physical location in the primary region. LRS is the least expensive replication option, but is not recommended for applications requiring high availability.
  • Zone-redundant storage (ZRS) copies your data synchronously across three Azure availability zones in the primary region. For applications requiring high availability, Microsoft recommends using ZRS in the primary region, and also replicating to a secondary region.

An Azure storage account have maximum storage account capacity of 5 PiB and no limit in maximum number of blob containers, blobs, file shares, tables, queues, entities, or messages.


  • Redundancy in the primary region
  • Azure storage limits


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