Multiple devices per mount (data_dir)

Hi Jonathan,

Less of an issue, more of a clarification request.

We are currently using FIO for DS cassandra IO benchmarking.  We have recently changed drive layout from a single device for the "data_dir" to multiple devices, /dev/sd[b-g].  

When running FIO against this data_dir that has multiple devices, how is accounting for all of the devices in the mount point?

Thanks!