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Replication requirements

This section describes system requirements that must be in place to utilize the replication feature.

ClosedSupported systems

Replication is supported on select systems running Unitrends version 7.0 and higher.

Replication is supported on all Recovery Series appliances listed in the Recovery Series Appliance Family Datasheet.

For Unitrends Backup systems, the appliance can be used as either a replication source or replication target. Cross-replication is not supported on Unitrends Backup systems.

Note:   Although replication is supported on 7.0 and 7.1.x systems, it is highly recommended that these systems be updated to the latest release to take advantage of significant performance enhancements. If you cannot upgrade, see KB 3174 for details about running replication on these older versions.

ClosedSystem requirements

The following are required for replication:

• The target system and any replicating source systems must be running Unitrends version 7.0 or higher. Upgrade these systems if necessary. Note that upgrading to the latest version is highly recommended to take advantage of significant performance enhancements. If your source and target are running version 7.0 or 7.1.x and you cannot upgrade, replication is supported. For 7.0/7.1.x setup procedures, see KB 3174.
• The target system must be configured with the replication target or local backup system and replication target installation type. For details, see Installation types and replication.
• The target system must have at least 128GB of available backup storage space. Unitrends Backup systems are deployed with 138 GB of backup storage space.
• If configuring multiple backup devices, all must be roughly the same size. Having devices of varying size may result in replication failures.
• For Unitrends Backup systems, you must purchase a license and register the system before it can be used as a replication source or replication target.
• Cross-replication can be performed only on physical systems. It is not supported on Unitrends Backup systems.
• If connecting the source and target directly using 10GbE fiber cable, both the source and target systems must be using the same NIC card model. Unitrends has switched from the HP NC522SFP Dual Port 10GbE Server Adapter to the Intel Ethernet Server Adapter X520-DA2 Dual Port 10GbE. Verify both systems are using the same model before setting up replication.
• If you create a secure tunnel between the source and target systems using OpenVPN (the recommended configuration), port 1194 is used for all communication between the two systems. For details about ports, see About security levels and KB 3372.