I’m trying to create a graph that displays the available disk space for each disk on a list of servers. I currently have two variables; one containing a list of servers, and another containing a list of disks. I have tried to create a graph from these with a single metric, using the server variable as the host, and the disk variable as the item. However, the graph only displays the first disk for each server. How can I have Grafana show a series on the graph for each disk-server combination?