Late 2014 MacMini with combo SSD + HD Fusion Drive
Usually runs great, about 3x a day I can hear the HD really doing a lot of activity, reads / writes.
What can I use to determine which process is doing all of these reads / writes? I really want to find out what kind of diagnostics tool I can use to pinpoint what is doing all the reads / writes. I found some commands searching but those required booting into safe mode, I assume there is something I can use that doesn't require safe mode.
I can see from Activity Monitor that the IO spikes, but I cannot see a way to include a Read / sec column to activity monitor. Assume I need to use something else.
Image 1 shows high disk usage, image two shows it settling back down. For context on total IO: Time since boot: 26 days 22:20
Thanks for the help.