You can use Azure NetApp Files Cross-Region Replication, currently in [preview](https://azure.microsoft.com/blog/azure-netapp-files-cross-region-replication-and-new-enhancements-in-preview/), which uses NetApp SnapMirror technology. With this technology, only changed blocks are sent over the network in a compressed, efficient format. This proprietary technology minimizes the amount of data required to replicate across the regions, which saves data transfer costs. It also shortens the replication time so that you can achieve a smaller RPO. For more information, see [Requirements and considerations for using cross-region replication](../../azure-netapp-files/cross-region-replication-requirements-considerations.md).
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