Abstract: In cloud, replication enables automatic, asynchronous copying of objects across buckets. Replication serves two purposes, with the main one being to provide high availability in case nodes or shards fail. Enabling Object Storage replication is as simple as creating a replication policy on the source bucket that identifies the region and the destination bucket to replicate to. After the replication policy is created, the destination bucket is read-only and updated only by replication from the source bucket.