Disk speed IO test tool

http://woshub.com/how-to-measure-disk-iops-using-powershell/ https://gallery.technet.microsoft.com/DiskSpd-A-Robust-Storage-6ef84e62 diskspd.exe –c10G -d300 -r -w40 -t8 -o32 -b64K -Sh -L c:\diskpsdtmp.dat > c:\DiskSpeedResults.txt