rsync from xfs to nfs+xfs and ACL problems

rsync from xfs to nfs+xfs and ACL problems

[Michael Monnerie]

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Hello, I'm trying to rsync from an xfs with ACLs set to another server 
which has an xfs filesystem. I mounted the nfs using 
rw,noatime,nodiratime,acl,rsize=65536,wsize=65536,nfsvers=3,proto=tcp,mountproto=tcp
and I get these errors:

rsync: rsync_xal_set: lsetxattr("anse/Software 
ANDY/Bfort.exe","trusted.SGI_ACL_FILE") failed: Operation not supported 
(95)
rsync: rsync_xal_set: lsetxattr("anse/Software 
ANDY/CWShredLast.exe","trusted.SGI_ACL_FILE") failed: Operation not 
supported (95)
rsync: rsync_xal_set: lsetxattr("anse/Software 
ANDY/CWSysinfo_130.zip","trusted.SGI_ACL_FILE") failed: Operation not 
supported (95)

Does it mean I can't sync ACLs? How could I do it? I need a full backup 
including ACLs, as I want to move all data and then restore.

-- 
mit freundlichen Grüssen,
Michael Monnerie, Ing. BSc

it-management Internet Services
http://proteger.at [gesprochen: Prot-e-schee]
Tel: 0660 / 415 65 31

// Wir haben im Moment zwei Häuser zu verkaufen:
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Re: rsync from xfs to nfs+xfs and ACL problems

[Dave Chinner]

On Tue, May 18, 2010 at 01:50:15PM +0200, Michael Monnerie wrote:
> Hello, I'm trying to rsync from an xfs with ACLs set to another server 
> which has an xfs filesystem. I mounted the nfs using 
> rw,noatime,nodiratime,acl,rsize=65536,wsize=65536,nfsvers=3,proto=tcp,mountproto=tcp
> and I get these errors:
> 
> rsync: rsync_xal_set: lsetxattr("anse/Software 
> ANDY/Bfort.exe","trusted.SGI_ACL_FILE") failed: Operation not supported 
> (95)
> rsync: rsync_xal_set: lsetxattr("anse/Software 
> ANDY/CWShredLast.exe","trusted.SGI_ACL_FILE") failed: Operation not 
> supported (95)
> rsync: rsync_xal_set: lsetxattr("anse/Software 
> ANDY/CWSysinfo_130.zip","trusted.SGI_ACL_FILE") failed: Operation not 
> supported (95)
> 
> Does it mean I can't sync ACLs? How could I do it? I need a full backup 
> including ACLs, as I want to move all data and then restore.

NFSv3 doesn't support ACLs, IIRC.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

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Re: rsync from xfs to nfs+xfs and ACL problems

[Michael Monnerie]

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On Dienstag, 18. Mai 2010 Dave Chinner wrote:
> NFSv3 doesn't support ACLs, IIRC.

Thank you for the hint. I remounted with nfs4 now:
type nfs4 (rw,noatime,nodiratime,rsize=65536,wsize=65536,tcp,intr,acl)

And now I get this on "rsync -aPvHAX":

rsync: chown "somedir/Cen731n.afm" failed: Invalid argument (22)
rsync: chown "somedir/Teil2" failed: Invalid argument (22)
rsync: rsync_xal_set: 
lsetxattr("somedir/Teil2/IMAGE.CCD","trusted.SGI_ACL_FILE") failed: 
Operation not supported (95)

I changed again and defined an rsync module on the target, making a 
direct rsync and no more shown errors. Still, what is causing the tons 
of errors when rsyncing to nfs+xfs, no matter if nfs3 or nfs4? I looked 
manually at some files and it seems everything was copied well, despite 
the errors.

Could inode64 be a problem here?

-- 
mit freundlichen Grüssen,
Michael Monnerie, Ing. BSc

it-management Internet Services
http://proteger.at [gesprochen: Prot-e-schee]
Tel: 0660 / 415 65 31

// Wir haben im Moment zwei Häuser zu verkaufen:
// http://zmi.at/langegg/
// http://zmi.at/haus2009/

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Re: rsync from xfs to nfs+xfs and ACL problems

[Christoph Hellwig]

On Wed, May 19, 2010 at 01:04:37PM +0200, Michael Monnerie wrote:
> I changed again and defined an rsync module on the target, making a 
> direct rsync and no more shown errors. Still, what is causing the tons 
> of errors when rsyncing to nfs+xfs, no matter if nfs3 or nfs4? I looked 
> manually at some files and it seems everything was copied well, despite 
> the errors.

XFS stores ACLs different than other Linux filesystems because it's
on-disk compatible to IRIX.  While the other filesystems store the ACL
in the same format that is used for the user interface XFS stores it
in a separate trusted extended attribute.  rsync should and
traditionally has ignored those attributes, but it seems something in
rsync changed recently so that it tries to copy these attributes in
the trusted.* namespace, which fails on NFS.

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Re: rsync from xfs to nfs+xfs and ACL problems

[Michael Monnerie]

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On Mittwoch, 19. Mai 2010 Christoph Hellwig wrote:
> XFS stores ACLs different than other Linux filesystems because it's
> on-disk compatible to IRIX.  While the other filesystems store the
>  ACL in the same format that is used for the user interface XFS
>  stores it in a separate trusted extended attribute.  rsync should
>  and
> traditionally has ignored those attributes, but it seems something in
> rsync changed recently so that it tries to copy these attributes in
> the trusted.* namespace, which fails on NFS.
 
Thank you. Does that mean I can simply ignore that errors, and that 
everything is OK even over NFS?

-- 
mit freundlichen Grüssen,
Michael Monnerie, Ing. BSc

it-management Internet Services
http://proteger.at [gesprochen: Prot-e-schee]
Tel: 0660 / 415 65 31

// Wir haben im Moment zwei Häuser zu verkaufen:
// http://zmi.at/langegg/
// http://zmi.at/haus2009/

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Re: rsync from xfs to nfs+xfs and ACL problems

[Christoph Hellwig]

On Wed, May 19, 2010 at 01:46:38PM +0200, Michael Monnerie wrote:
> On Mittwoch, 19. Mai 2010 Christoph Hellwig wrote:
> > XFS stores ACLs different than other Linux filesystems because it's
> > on-disk compatible to IRIX.  While the other filesystems store the
> >  ACL in the same format that is used for the user interface XFS
> >  stores it in a separate trusted extended attribute.  rsync should
> >  and
> > traditionally has ignored those attributes, but it seems something in
> > rsync changed recently so that it tries to copy these attributes in
> > the trusted.* namespace, which fails on NFS.
>  
> Thank you. Does that mean I can simply ignore that errors, and that 
> everything is OK even over NFS?

Thinks should be okay - rsync probably has copied the ACLs via the
normal system namespace.  You can verify this by doing a getfacl
on a nfs file that should havfe ACLs.

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Re: rsync from xfs to nfs+xfs and ACL problems

[Linda Walsh]

If the NFS system doesn't handle ACL's,
you might try using "star" which can handle ACL's and extended file attributes storing them in
an extended tar-format archive.

It has a "-copy" feature that I've used successfully to copy extended file attributes:
(cd sourcedir; star -acl -xattr -no-fsync . /destdir/.)&

and ACL's  from one XFS file system to another, so I'm reasonably sure it's 
archive format (see its manpage for correct options) would also store them.



Dave Chinner wrote:
> On Tue, May 18, 2010 at 01:50:15PM +0200, Michael Monnerie wrote:
>> Hello, I'm trying to rsync from an xfs with ACLs set to another server 
>> which has an xfs filesystem. I mounted the nfs using 
>>
>> Does it mean I can't sync ACLs? How could I do it? I need a full backup 
>> including ACLs, as I want to move all data and then restore.
> 
> NFSv3 doesn't support ACLs, IIRC.
> 
> Cheers,
> 
> Dave.

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Re: rsync from xfs to nfs+xfs and ACL problems

[Emmanuel Florac]

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Le Tue, 18 May 2010 13:50:15 +0200
Michael Monnerie <michael.monnerie@is.it-management.at> écrivait:

> Does it mean I can't sync ACLs? How could I do it? I need a full
> backup including ACLs, as I want to move all data and then restore.

Use nfs4 instead, should be fine. Exports structure is different. The
simple way is to simply add "fsid=0" in /etc/exports :

/mnt/whatever *(fsid=0,rw,async,no_root_squash,no_subtree_check)

Restart your nfs daemons, then mount (notice the / instead
of /mnt/whatever ) :

mount -t nfs4 server:/ /mnt/nfsmount

regards,
-- 
------------------------------------------------------------------------
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                    |   Intellique
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