On Jun 9, 2010, at 19:27, A Darren Dunham wrote:

> NFS cannot carry the NTFS ACLS though.  So conceivably you can do all
> CIFS backups and get all security structures.  (I do NDMP and have
> mainly UNIX servers, so it's not something I've tried to test).

Well, NFSv4 does NTFS-style ACLs. See Section 5.11 of the NFSv4 spec  
(RFC 3530). There's also a draft on mapping NFSv4 and draft-POSIX ACLs  
("draft-ietf-nfsv4-acl-mapping-05").

Don't know of many systems that can show both though. I believe  
OpenSolaris can do UID-SID mapping and such with ACLs if you're  
exporting a ZFS file system to both NFS and CIFS/SMB.

NetApp should be able to handle it if you use "mixed" QTrees:

        http://www.netapp.com/us/communities/tech-ontap/nfsv4-0408.html

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