About Connection Service
The Connection Service helps avoid cross-switch connections by removing and replacing connections made from the host's default network interface or connections made from a host adapter not in the same subnet as one of the volume target portals. If the connection service finds that the connections are not balanced across the host network interfaces, it will add or remove connections to rebalance them. As configuration changes occur, the the connection service ensures that the host maintains optimal connections with the target.
The connection service calculates the optimal number of connections differently
for volumes from storage arrays running array OS 1.x, array OS 2.x and later using the
Manual Connection Method, and array OS 2.x and later using the Automatic Connection
Method. The calculation guidelines below apply to a flat data network. The calculations
change to accommodate multiple data subnets.
- Array OS 1.x volumes and array OS 2.x volumes using the Manual connection method — One connection for each host network interface to each volume target portal, then maximum and minimum connection limits are applied
- Array OS 2.x volumes using the Automatic connection method — the connection service calculates the optimal connections for both VST and GST