[gpfsug-discuss] Copying ACLs from outside sources

Fosburgh,Jonathan jfosburg at mdanderson.org
Wed Oct 9 18:31:45 BST 2013

On 10/3/13 4:23 AM, "Jonathan Buzzard" <jonathan at buzzard.me.uk> wrote:

>I guess the first thing to do is confirm that you have functioning
>CIFS's ACL's in your Samba GPFS file server. Specifically you would need
>to have NFSv4 ACL's enabled in the file system and the gpfs VFS module
>loaded in Samba. Note having mixed ACL modes did not work very well for
>me, so best to turn off Posix ACL's and only do NFSv4 ACL's.
Thank you for the response. We have been able to make some headway on
this, but I am still bumping up on some issues.  It looks as if, when an
NFSv4 ACL is already present on the parent directory tree, copying acls
via robocopy works. However, if there is a posix ACL present, then the
ACLs are still not copied correctly.  I was interested in setting the ACL
mode to nfs4 only (currently set to all), however, I have some
reservations about this.

The NFS server is Red Hat, and I need to be able to server version 3 and
version 4, plus we will have native GPFS clients and the CIFS clients.
What are the ramifications, in this setup, of changing the ACL type? What
would happen to any existing ACLs?

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