Cross-zone replication allows you to replicate your Azure NetApp Files volumes asynchronously from one Azure availability zone (AZ) to another within the same region. Using technology similar to the cross-region replication feature and Azure NetApp Files availability zone volume placement feature, cross-zone replication replicates data in-region across different zones; only changed blocks are sent over the network in a compressed, efficient format. It helps you protect your data from unforeseeable zone failures without the need for host-based data replication. This feature minimizes the amount of data required to replicate across the zones, limiting data transfers required and shortens the replication time so you can achieve a smaller Restore Point Objective (RPO). Cross-zone replication doesn’t involve any network transfer costs and is highly cost-effective.
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