I've been using vxtrace in a performance management effort. (VxVM 3.5 on
Solaris 8).

I've been focusing on the virtual device records since they provide the pid
of the process initiating the I/O. The meaning of most of the fields on the
vdev record seems clear but I'm not sure what the 'concurrency' field means.
In a one minute sample, over 10% of the records have a concurrency value of
over 100, with a max of 360. How do I interpret that?

Michael Maciag