This page may be outdated. There is something of a FAQ on how to make the permissions of a ZFS on Linux volume (zvol) stick. In particular, the user and group (uid and gid) of the owner. When using ZFS on Linux, we can make this work by using udev. udev puts out less information about these than about most others, but we can figure it out anyhow. There is a file /lib/udev/rules.
