The GAD+UR 3DC delta resync configuration has the following network configurations:
- Network between servers: All servers are connected to the same LAN.
- Networks between storage systems: There are two types of networks, both of which are connected using FC, between the storage systems:
- Remote connection (primary-to-GAD secondary storage system, primary-to-UR secondary storage system, GAD secondary storage system-to-UR secondary storage system): Establish a bi-directional connection between the ports in the primary, GAD secondary, and UR secondary storage systems.
- External storage connection (primary-to-external storage, GAD secondary storage system-to-external storage system): Establish a connection between the external port in the primary/GAD secondary storage system and the Target port in the external storage system.
- Networks between servers and storage: The servers and storage systems are connected using FC. There are two types of networks between the servers and the storage systems:
- Connection between the server and the primary/GAD secondary storage system: The server is connected to the primary storage system and GAD secondary storage system.
- Connection between the server and the UR secondary storage system: The server is connected only to the UR secondary storage system.