samba - Aug 2023 - Migration of files with Windows ACL's to Samba server

On 7/28/23 15:27, Borut Rozman via samba wrote:
> So /storage is a NFS mount from a second server.
> 
> server2:/storage/    201T   40T  153T  21% /storage
well, resharing NFS is always asking for problems... :)

It looks like when using acl_xattr where Samba will store the NT ACLs in 
filesystem extended attributes, your NFS mount doesn't support setting 
xattrs.

Iirc xattrs are an optional feature of the NFS4 protocol, so either your 
client or server might not implement it or it's not configured correctly.

As an alternative, you could also try to use vfs_nfs4acl_xattr with 
nfs4acl_xattr:nfs. It's been some time since I implemented this, but 
that should be the correct setting for your usecase. :)

-slow

-- 
Ralph Boehme, Samba Team                      https://samba.org/
SerNet Samba Team Lead                     https://sernet.de/en/
SAMBA+ Samba packages                        https://samba.plus/
SAMBA+ AIX Webinar             https://samba.plus/samba-webinars

-------------- next part --------------
A non-text attachment was scrubbed...
Name: OpenPGP_signature
Type: application/pgp-signature
Size: 840 bytes
Desc: OpenPGP digital signature
URL:
<http://lists.samba.org/pipermail/samba/attachments/20230728/9417b163/OpenPGP_signature.sig>

Raplh,
Thanks for your answer, I assume NFS resharing is really not the way to go, we
have a complicated setup (as you would assume) and this was just to try make
things separated and simpler.
To explain more
- storage server is joined to the AD domain via SSSD 
- we are running NIS to propagate nfs maps to the clients, server just serves as
storage
- we want to run samba to share same nfs mount points across.

So probably we will have to disconnect the sssd and reconnect it via samba to AD
and discard the second machine we are using at the moment ot serve as samba
server. Just today I have an issue with one of the shares being reshared via
samba, that it reports 0 free space so no one can save anything on that share. I
want to mitigate this issue for the time being so it would be helpful how to fix
that? Any ideas? It reports 726mb of size of that share and 0 bytes free.

I have plenty of space on the storage server. 

Regards
Borut
> On 28 Jul 2023, at 16:13, Ralph Boehme <slow at samba.org> wrote:
> 
> On 7/28/23 15:27, Borut Rozman via samba wrote:
>> So /storage is a NFS mount from a second server.
>> server2:/storage/    201T   40T  153T  21% /storage
> 
> well, resharing NFS is always asking for problems... :)
> 
> It looks like when using acl_xattr where Samba will store the NT ACLs in
filesystem extended attributes, your NFS mount doesn't support setting
xattrs.
> 
> Iirc xattrs are an optional feature of the NFS4 protocol, so either your
client or server might not implement it or it's not configured correctly.
> 
> As an alternative, you could also try to use vfs_nfs4acl_xattr with
nfs4acl_xattr:nfs. It's been some time since I implemented this, but that
should be the correct setting for your usecase. :)
> 
> -slow
> 
> -- 
> Ralph Boehme, Samba Team                      https://samba.org/
> SerNet Samba Team Lead                     https://sernet.de/en/
> SAMBA+ Samba packages                        https://samba.plus/
> SAMBA+ AIX Webinar             https://samba.plus/samba-webinars
>