[CentOS] Benchmark Disk IO

Matt Keating wrote:
> What is the best way to benchmark disk IO?
>
> I'm looking to move one of my servers, which is rather IO intense. But
> not without first benchmarking the current and new disk array, To make
> sure this isn't a full waste of time.
>   


synthetic benchmarks only tell you what the synthetic benchmarks 
measure, which may or may not be of significance to your application.