So I find myself working with a lot of home brew NAS boxes recently. The performance of these NAS boxes come in to question quite often. I'd like to learn how to use IOMeter in a smart and sane manner ...

Our 22GB Iometer test file is able to reside entirely in the cache, and subsequent runs show a visible boost in performance when bombarding the drive with an onslaught of random 4K reads and writes.

OMeter is an I/O subsystem measurement and characterization tool for single and clustered systems. It is used as a benchmark and troubleshooting tool and is easily configured to replicate the behavior ...