Replication Scenarios

Veeam Backup & Replication supports two replication scenarios:

Both scenarios are applicable for onsite replication and replication to a remote disaster recovery (DR) site. In both scenarios, you can replicate VM data over a direct data path or over a pair of WAN accelerators.

On-Host Replication

On-host replication can be used when you replicate VMs over the LAN or WAN. This scenario requires the following backup infrastructure components:

No additional infrastructure components are required. Note, however, that the source Veeam Data Mover may cause additional overhead on the source host.

Replication Scenarios 

Off-Host Replication

Off-host replication can be used when you replicate VMs both over the LAN and WAN. In contrast to on-host replication, this scenario requires an additional replication infrastructure component – off-host backup proxy.

The off-host replication scenario requires the following replication infrastructure components:

During off-host replication, all the necessary data transformations (such as data compression and block filtering) are performed on off-host backup proxy, which helps reduce unwanted overhead on the source host.

Replication Scenarios 

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