This thread is long-dead, but I wanted to add that -M is already in iostat 9.0, ...

mblakele on May 25, 2009 | parent | context | favorite | on: Iostat -x

This thread is long-dead, but I wanted to add that -M is already in iostat 9.0, as -m. Yesterday's release of 9.0.3 adds -z (if pressed, I'll admit to supplying a patch): http://pagesperso-orange.fr/sebastien.godard/changelog.html