There has been some mention on the netatalk mailing list of the "nbmand" zfs property causing problems where users can create but not delete files over afp. If you are experiencing this problem, try `zfs `
zfs set nbmand=off zpool/path/to/file/system`.
Stale PID file: Netatalk 3.x has a default pidfile location of `
/var/spool/locks/netatalk`. If the service won't start because of a stale lock file, delete this.
For more information check out the Netatalk web site and mailing lists.