Delegating permissions with the zfs "allow" subcommand does not appear to work in Nexenta CP 3 RC2. To reproduce, try to delegate permissions to any user with a valid uid/gid (root shown for example purposes):

root@thetics:~# zfs allow root send,receive syspool Traceback (most recent call last): File "/usr/lib/zfs/pyzfs.py", line 64, in ? subfunc() File "/usr/lib/python2.4/site-packages/zfs/allow.py", line 393, in do_allow ds.set_fsacl(un, d) File "/usr/lib/python2.4/site-packages/zfs/dataset.py", line 198, in set_fsacl return zfs.ioctl.set_fsacl(self.name, un, d) TypeError: argument 3 must be dict, not dict

This appears to be related to an issue with the python libraries and/or the python build being used.