Hi Jens!

Thanks for your answer:
Quote Originally Posted by jmo
I have a strong suspicion why the first attempt won't work: You're using NFS (DSS acts as a NFS server) and NFS does not have the concept of "shares" but that of "export directories" - you were trying to export the same directory twice but the NFS server daemon can only use one set of parameters.

Obviously, either the NFS server only took the first (or last) set of parameters or DSS didn't put the second set into the NFS config file in the first place. Either way DSS should have given at least a warning, IMO.
This sounds very plausible, and was confirmed by the technical support meanwhile. To have this in the forum, I cite their answer:
Quote Originally Posted by Technical Support
If two or more shares are pointed to the same path, all will have the same permissions as the first one in /etc/exports. As a workaround it's possible to point the "no_root_squash" share to the higher folder. In this case it will be Logical volume.
This is actually the workaround I used in my post above. Of course, it would be nice to have a per-host configuration of the root_squashing. But mabybe, this would blow up the configuration interface. Nevertheless, I believe that the scenario I ran into should be fairly generic (for external backups, i.e.).

Best regards,
-mcr