TrueCopy operations are carried out between primary and secondary storage systems connected by a Fibre Channel or iSCSI interface. An NVMe-oF interface is not supported. The data path, also referred to as the remote copy connection, connects ports on the primary storage system to the ports on the secondary storage system. Ports are assigned attributes that allow them to send and receive data.
To establish iSCSI connections between the storage systems, make sure to use ports on the 10-Gbps iSCSI channel board. The 25-Gbps iSCSI channel board cannot be used for iSCSI connections between the storage systems.
One data path connection is required, but two or more independent connections are recommended for hardware redundancy.