I've got an EMC VNX & NS-120 that I'm experiencing this "problem" with. On any of the IO Response Time graphs, my hot spare disks show up with extremely high response times. This has been discussed before and I think that Profiler is correctly interpreting the statistics. Since I doubt that anyone really cares about stats on a hot spare, I would love to see the ability to filter out or exclude hot spare disks from all graphs. Can this be added in the near future? Thoughts?