> Since ZFS doesn't expose a block device one would need another > documented way to resolve /sys/fs/zfs/$FS. Hopefully ‘tank/my/fs’ is > unique and can't be aliased to something else, can it?
> Do the slash characters in ‘tank/my/fs’ hint at a hierarchy, or is it a > flat string? It's unique and designates the ZFS specific fs instance which is hierarchical. First level is the zpool name. As far as I know btrfs has something similar with subvolumes. Below is an example of zfs list NAME USED AVAIL REFER MOUNTPOINT tank 2,45T 189G 120K /tank tank/backup 75,8G 189G 136K /tank/backup tank/data 1,91T 189G 1,83T /tank/data tank/home 122G 189G 42,2G /home tank/root 148G 189G 13,9G / So, thanks for hints. I will try to inspect what the zfs upstream thinks about this.
