OS?
For Linux SAMBA setup, I use iostat command. Specifically:
iostat -m 10 5
Which you can find under the sysstat package.
Leonard: [discussing Sheldon's work] At least I didn't have to invent 26 dimensions to get the math to work.
Sheldon: I didn't invent them. They're there.
Leonard: Yeah? In what universe?
Sheldon: In all of them, that's the point!