> The RAID56 feature provides striping and parity over several devices, same as the traditional RAID5/6.
> There are some implementation and design deficiencies that make it unreliable for some corner cases and *the feature should not be used in production, only for evaluation or testing*.
> The power failure safety for metadata with RAID56 is not 100%.
I have personally been bitten once (about 10 years ago) by btrfs just failing horribly on a single desktop drive. I've used either mdadm + ext4 (for /) or zfs (for large /data mounts) ever since. Zfs is fantastic and I genuinely don't understand why it's not used more widely.
> The RAID56 feature provides striping and parity over several devices, same as the traditional RAID5/6.
> There are some implementation and design deficiencies that make it unreliable for some corner cases and *the feature should not be used in production, only for evaluation or testing*.
> The power failure safety for metadata with RAID56 is not 100%.
I have personally been bitten once (about 10 years ago) by btrfs just failing horribly on a single desktop drive. I've used either mdadm + ext4 (for /) or zfs (for large /data mounts) ever since. Zfs is fantastic and I genuinely don't understand why it's not used more widely.