Locally Redundant Storage (LRS) Azure Storage provides high availability by ensuring that
three copies of all data are made synchronously before a write is deemed successful. These copies
are stored in a single facility in a single region. The replicas reside in separate fault domains and
upgrade domains. This means the data is available even if a storage node holding your data fails
or is taken offline to be updated.
When you make a request to update storage, Azure sends the request to all three replicas and
waits for successful responses for all of them before responding to you. This means that the
copies in the primary region are always in sync.
LRS is less expensive than GRS, and it also offers higher throughput. If your application stores data
that can be easily reconstructed, you may opt for LRS.
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