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anyone have recommendations on metric to use and value settings for a 2800 appliance. I see the metric, Disk Usage on pg.249 of VP User Guide is displaying as a % .  What source is this metric derived from and how would I determine what min/max threshholds to set for a  2800 node?

I am very concerned with the Disk IOs of my Teradata server.
I have ran the following query