Hi,
I'm writing a stress-testing tool and i'm looking at using fio to
stress-test disks. The point is not exactly to benchmark the disks, but
put sustained load on the disks to make sure they are generally in
working order.
Right now, I came up with something like this:
fio --name=stressant --readwrite=randrw --filename=/dev/sdX \
--size=100% --numjob=4 --sync=1 --direct=1 --group_reporting
My question is:
1. will this reliably wipe the whole drive? i know that some data can
remain due to magnetic properties of the drive or nasty SSD tricks,
but assume we don't do crazy forensics
2. if not, is there a way to directly test write I/O directly through
the device (to ignore filesystem-related issues) non-destructively?
Thanks!
A.
PS: for those curious, my prototype is available here:
https://gitlab.com/anarcat/stressant/blob/master/stressant.py
Nothing serious so far...
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- Jacques Ellul
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