10.2. Replicated Volumes vs Geo-replication

The following table lists the differences between replicated volumes and geo-replication:

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Replicated Volumes	Geo-replication
Works between all bricks in a replica set, so that changes are synced in both directions.	Works only from the primary (master) volume to the secondary (slave) volume.
Mirrors data across bricks within one trusted storage pool.	Mirrors data across geographically distributed trusted storage pools.
Provides high-availability.	Provides data back-up for disaster recovery.
Synchronous replication: each and every file operation is applied to all the bricks.	Asynchronous replication: checks for changes in files periodically, and syncs them on detecting differences.