Add Grid Management Virtual Interface
QuantaStor elects a 'master node' (also called 'Grid Primary' node) through which configuration changes are communicated through in order to keep all nodes in sync with the latest configuration state. When a storage grid is initially configured the 'master node' is the first node that the grid was created on and will stay there until another node is manually designated as the new storage grid master node. In order to make the change over to another grid master node automatic you'll need to add a Cluster VIF that has this express purpose of electing the current master node.
Navigation: High-availability VIF Management--> Storage Cluster Virtual Interfaces --> Virtual Interface Management --> Add Cluster VIF (toolbar)
Within the dialog choose 'Grid Primary' from the 'Use Case Settings'. Next press the 'Next' button and assign an unused IP address to the VIF. When created it'll have a "gm:" tag in the name.