Create a Replication Partner
Use the management subnet for replication when any of the following conditions apply:
- Your data IPs are not routable across the network
- You want to separate replication traffic from iSCSI traffic
- Your replication arrays are running array OS 1.4 or array OS 2.0 and above
For array OS 2.x and later, replication over a data subnet is available; however, it requires the replication control traffic to be transferred over a management subnet. If you choose to replicate over a data subnet, you must be able to do the following:
- Route the management subnet between replication partners by the default gateway for replication control traffic
- Route the data subnet between replication partners by a static route for replication data transfer traffic
Replication partners can run different data access protocols. For example, a Fibre Channel (FC) replication partner can be created for an iSCSI array, and an iSCSI replication partner can be created for a Fibre Channel array. For replication to function on an FC array, you must also configure an Ethernet link or IP subnet.
For Fibre Channel arrays, you do not need to separate the replication traffic; replication traffic never runs over Fibre Channel.
Log in to the replication partner and perform the same configuration steps on the downstream array and group.