I regularly need to check the speed of disks on servers I jump on to. I found an excellent resource from a Microsoft Blogger named David Pless;
It uses a number of counters from sys.dm_io_virtual_file_stats most of which are in milliseconds and bytes so they need to be aggregated for readability.
The script wasn’t *exactly* what I was after so I modified it to suit my needs. Here’s a sample of the output;
You’re more than welcome to grab a copy of this from my github. Feel free to make a pull request if you feel anything can be improved by changing this;