Followed this link: subdivide rows in time series graph in Grafana example - Search
y-axis: device id and system up time. Should be subdivided by device_id and multiple values for the system up time.
x-axis time
For each device_id, subdivided by the system up time (multiple values). Device id 1 range 0 to 15, device id 2 range 0 to 15 and so on. All I see is 0 to 10 on the y-axis. It did not sub divide the rows by device id.