I think HAMMER might be a good candidate for use with Linux, it's not as mature as ZFS and still lacks features that I actually use ZFS for (namely the self-hea

I think HAMMER might be a good candidate for use with Linux, it's not as mature as ZFS and still lacks features that I actually use ZFS for (namely the self-healing and data integrity features), but HAMMER2 is well on its way and should soon be a viable alternative (read: not replacement) for many use-cases where ZFS is of benefit.