I'm trying to rebulid your preconditioning test with Fio. My problem is that i don't know how i can run the test 360min and get a result for each minute.
I tried to handle it like this:
[global] runtime=60 time_based ioengine=libaio direct=1 filename=/dev/sdc thread=0 rw=randrw group_reporting=1 numjobs=16 iodepth=16 blocksize=4k
 rwmixread=0 stonewall  rwmixread=0 stonewall  rwmixread=0 stonewall
... and the steps , ,  360times.
Then FIO returns an error: maximum number of jobs (2048) reached
I need over 5000 jobs for my script.
How can I fix that problem? Is it possible that you from Storage Review show how you do the preconditioning?