HFS+ uses Form D. I had to remember to create my ZFS volumes with Form D enabled, as it isn't an attribute that can be changed afterwards. IIRC, ZFS on Mac OS

HFS+ uses Form D. I had to remember to create my ZFS volumes with Form D enabled, as it isn't an attribute that can be changed afterwards. IIRC, ZFS on Mac OS X would set that by default so if you created the volumes from a Mac, then ok. But I was creating my ZFS array on a Linux or OpenSolaris server, where I would need to set Form D Normalization explicitly.