[h2hn]

Interesting.

That's rigth the kind of hardware I was referring to, 1 GB of plain RAM. Truly, I haven't tested ZFS yet for that reason I've always read that ZFS has big requirements so I refrained to try it. It seems I should give it a try. ;)

Btrfs is another story I've used it for years and I'd prefer not to have to use it anymore untill it'll become "stable" and "performance". :)

[Laforet]

FreeNAS != ZFS. The former is a specialised storage system that has to meet a very different set of criteria than a lightweight server with 1GB ram.

[h2hn]

Is zfs able to repair from single data (copy) corruption?

My main issue is to be able to repair a "silent" data corruption on a single drive machine. Am I able to use x% of my "partition" to data repair or do I need to use other partition/drive to mirror/raid it?

If I understand right zfs can detect bitrot ("not really" a big deal) but without any local copy It can't self heal.

My use case is an arm A20 SoC (lime2) to storage local backups among other things, so I need something that detects and repairs silent data corruption at rest by itself (using a single drive).

A poor man NAS/server. ;)