Cross-zone-region replication builds on the existing capabilities of cross-region replication and cross-zone replication. It enables you to replicate volumes across regions and across availability zones within the same region, combining disaster recovery and business continuance capabilities for volumes. To establish two protection volumes, you can create either of the following setups (1) cross-zone replication and a cross-region replication relationship, (2) two cross-region replication relationships or (3) two cross-zone replication relationships. The source volume should be in an availability zone for the cross-zone replication relationship.
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