The NCP Trustee Report in Novell Remote Manager can be used to generate reports for an NSS volume, including a Dynamic Storage Technology shadow volume comprised of two NSS volumes. For information, see OES 2015 SP1: Novell Remote Manager Administration Guide.
There are currently no supported tools that can generate a trustee report for all directories in an NCP volume on Linux. Check the Novell Support website and the Novell Cool Solutions website for possible solutions that meet your needs. For example, one possible solution is Display Trustee Assignments.