zfs
Table of contents
Force 4k sector size in ZFS
Read http://blog.monsted.dk/?q=node/1Copy of raw commands:
# zpool create tank raidz ada0 ada1 ada2
# zdb | grep ashift
ashift: 9
# zpool destroy tank
# gnop create -S 4096 ada0
# zpool create tank raidz ada0.nop ada1 ada2
# zdb | grep ashift
ashift: 12
# zpool export tank
# gnop destroy ada0.nop
# zpool import tank