Hi
Running FreeNAS 11.2 and found it strange that a dataset created on a raid-z2 pool (4 disks, 4TB each, seagate) is taking up more space than the exact same dataset using same settings (at least when comparing zfs get all pool/dataset, see attachment) on a mirror pool (2 disks, 4 TB each, seagate). gzip9 and recordsize 16k.
raid-z2 pool: du -h -d0 → 46GB
du -hA -d0 → 73GB
mirror pool: du -h -d0 → 32GB
du -hA -d0 → 73GB
Is it supposed to be like that?
I posted this question on the freenas forum as well but I didn't get any explanation, so I'm hoping someone here might have an answer.
Thanks
Running FreeNAS 11.2 and found it strange that a dataset created on a raid-z2 pool (4 disks, 4TB each, seagate) is taking up more space than the exact same dataset using same settings (at least when comparing zfs get all pool/dataset, see attachment) on a mirror pool (2 disks, 4 TB each, seagate). gzip9 and recordsize 16k.
raid-z2 pool: du -h -d0 → 46GB
du -hA -d0 → 73GB
mirror pool: du -h -d0 → 32GB
du -hA -d0 → 73GB
Is it supposed to be like that?
I posted this question on the freenas forum as well but I didn't get any explanation, so I'm hoping someone here might have an answer.
Thanks
