Vlandan Seget of ESX Virtualization comments:
It’s been a while since IOMeter was updated. IOMeter 1.1 has some huge code changes according to the user guide. There are some some bug fixes as well in this new release. Important to note that if comparing the same workload between two different versions of IOMeter, you might not get the same results. It’s because of the fixes in the new release.
The application for measuring storage performance got an update. Go out and download the new version to ensure your storage benchmarks are accurate!
Read more at: IOMeter 1.1 Release