Snapshot Replication

Snapshot Replication provides schedulable, near-instantaneous data protection, ensuring business data in shared folders, and virtual machines in iSCSI LUNs, remain safe and available in the event of disaster.

Instant protection with snapshot technology

By leveraging the availability of Btrfs file system to more models, the Synology NAS includes state-of-the-art data snapshot technology, allowing for flexible point-in-time recovery of files, while only using a fraction of the storage space and computing resource compared to traditional backup.

Support target

as frequent as 5 minutes for shared folder and 15 minutes for iSCSI LUN


1024 per shared folder and 65536 system-wide

Extended replication

flexible replication topology for different business structure

Flexible recovery

recovery available in common file protocols, File Station, and Windows Explorer

Flexible Extended Replication Topology

Flexible replication topology for different business structures

Extended replication

Self-service recovery

Recovery can be intuitively done with File Station or Windows File Explorer when the operators are with eligible privilege, without the intervention of system administrator.

Disaster recovery for virtualization environments

Application-aware snapshots for virtualized workloads running on VMware and Hyper-V ensures data consistency of virtual machines. In addition, the support of VMware Site Recovery Manager simplifies the recovery process by allowing to start disaster recovery directly via VMware vCenter Server.

Flexible retention and replication methods

Snapshot Replication provides flexible retention and export/import methods for your replications to save your time, space, and bandwidth

  • Flexible retention policy

    Retention policies can be customized differently on the primary server and recovery server to optimize the storage usage.
  • Export/import initial replication

    The initial replication data can be delivered to the recovery server with the import function with physical storage device, avoid the long-wait time of the initial replication over network.
  • Flexible retention policy
  • Export/import initial replication
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Powerful administration tools

In addition to the snapshot protection, Snapshot Replication also provides great tools for system administrators to shorten the time required for actual failover and monitor each replication task effectively.

Assured recovery by running test failover

Test failover can be performed periodically as necessary to ensure the recovery procedures work as expected when real disaster occurs.

Reports for data transmission over WAN

Report is generated for each replication task which can be useful for IT administrator to further evaluate and optimize for the network environment.