In Azure Storage, which redundancy option copies your data synchronously to three separate availability zones inside the same region, ensuring the data remains available even if one zone experiences a failure?
Zone Redundant Storage
Geo-Redundant Storage
Read-Access Geo-Redundant Storage
Locally Redundant Storage
Zone Redundant Storage (ZRS) copies data synchronously to three availability zones in the same Azure region. This design keeps data available during a zone outage.
Locally Redundant Storage (LRS) keeps three copies in a single datacenter, so it protects only against rack or server failures.
Geo-Redundant Storage (GRS) first stores three local copies, then replicates asynchronously to a secondary region, but it does not span zones within the primary region.
Read-Access Geo-Redundant Storage (RA-GRS) has the same replication pattern as GRS but permits read access to the secondary region; it also does not replicate across zones.
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