"Iometer 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 behaviour of many popular applications. One commonly quoted measurement provided by the tool is IOPS.".

What is Iometer? - Definition from 

How do you set up an IOMeter?
"IOMeter Setup. To install IOMeter, double-click on the executable and follow the prompts. After the installation is finished, click on the Iometer icon to start the GUI and complete the basic configuration. Right-click IOMeter and select Run as administrator to run IOMeter with administrative privileges. May 30, 2013"

Iometer Links...

How do I use Iometer?