I noticed Idera Diagnostic Manager had Average Disk Milliseconds per write and also per Read,

so I enabled it from there, as we'd have history in our repository. The frequency...

Thank You. Not sure why I didn't have it yesterday. Will add them and see.

Gail, was that avg sec/read and avg sec/write that you meant? If so would the same >100 ms warning flag apply or is it relative?

Thank you, okbangas.

So, I started capturing Disc reads/sec and disk writes/sec among few other counters since yesterday night. The frequency I was collecting was every three minutes.

I've seen Disc...

Thank you Gail.. the other thing I'd noticed while monitoring as I mentioned above was - OS Disk Time Per Disk (%) for C (and of course the H) drive...