Technology Insights

How to Test Disk Input and Output on Linux

There are a couple useful utilities on Linux to test disk input/ouput.

Sequential Disk Access: hdparm

The hdparm command will test sequential disk access and can be used with the below command. Replace /dev/sda1 with the mounted disk you would like to test such as /dev/hda1.


  1. hdparm -t /dev/sda1

The results will output similar to the below.