Jon LaBadie wrote at 10:59 -0400 on Apr 25, 2008:
 > Another way would be to use include directives.  For example, if the
 > zfs pool was /pool and had file systems of a, b,c, and d, you could
 > set up multiple DLEs that were rooted at /pool (different tag names)
 > and had include directives of "include ./a ./c" and another with
 > "include ./b ./d"  While traversing each of the included starting
 > points (directories), tar would never cross a file system boundary.

Do those work when using 'dump' instead of 'tar'?