I'm testing harddisk performance, and would like to test writing to the outer tracks of my harddisk with ZFS. One way of doing this would be to create a pool/filesystem with a start point just a few Gigs away from the end of my harddisk.
Is this possible? If so, how do I do it? I've looked in zfs man pages and googled, but couldn't find what I'm looking for.
Furthermore, I'd like to create a RAIDZ1 using only the last part (outer tracks) of my HDDs the same way - for performance testing purposes.