Strange definition of a "monitoring" tool. It essentially requires a human being to run the tool, look at the graph, and make a decision on the data. There is

Strange definition of a "monitoring" tool. It essentially requires a human being to run the tool, look at the graph, and make a decision on the data. There isn't even a baseline to compare the data to. This isn't really monitoring, it's equivalent to typing df and looking at how many bytes on disk is being used, and doing this every 5 minutes.