I am trying to monitor some disk activity on a hyper v host machine. I see many articles that tell me the range is 1-15ms is healthy 15-25ms is warning and 26ms or more is bad.
So I set the counter as logical disk \ avg sec read and write.
So my question is what do you set the scale to. Microsoft defaults it to 1000 so I am guessing on the graph if I see 20 that is 20ms? There are so many scales you can set it to I want to make sure it is the right one. I have read a lot of people say the defaults are wrong.
Also is this the best scale to look at for disk activity? I am basing the above from a TechNet article. Would I monitor the system disk like C? or the actual disk like V that is reading off the SAN where the VMs live? Thanks!