These test scripts are dangerous and should not be casually run by people who don't know exactly what they're doing! They assume that they're in a system where any Ironwolf 12TB drive is a device under test and can be casually repartitioned, added to or removed from mdraid arrays or ZFS pools without any warning and they'll do exactly that.
They similarly assume that any mdraid array under /dev/md1 and any ZFS pool named test are devices under test, fair game, and can be destroyed, recreated, or otherwise mangled without any warnings.
These scripts are a place to start from, and will not be ready for use as-is on nearly any individual system. Do not use these scripts on production systems.
This is the scripting that was used to generate benchmarks published at https://arstechnica.com/gadgets/2020/05/zfs-versus-raid-eight-ironwolf-disks-two-filesystems-one-winner/
Currently a bit of a chocolate mess; was not designed from the get-go for public consumption. The perl script on the inside of the loop's not bad, but don't judge me too harshly by the quick-and-dirty bash scripting that calls it. =)