We had the same problem here with a Linux client....the solution was to
include these two lines on dsm.opt:
SKIPACL yes
SKIPACLUPdatecheck yes
On Feb 5, 2008 8:49 AM, Rainer Schöpf <rainer.schoepf AT proteosys DOT com>
wrote:
> Hello TSMers!
>
> After upgrading the TSM Linux client on one of our fileservers (x68_64)
> from 5.3.5 to 5.4.1, the next incremental started to backup all files
> again. I traced this to a change in the handling of filesystem ACLs by the
> TSM client.
>
> The filesystem in question is xfs.
>
> For the time being, I went back to 5.3.5 (server is 5.4.1.0 on W2K3). I
> can live with that for a while.
>
> I traced the problem with strace and client -TRACEFLags=service. This
> shows that the 5.4 does not use the libacl interface, but accesses the
> extended attributes directly with the getxattr system call. And indeed,
> the TSM client trace shows this:
>
> 04.02.2008 12:48:39.468 : unxfilio.cpp (1571): fioCmpAttribs:
> Attribute comparison of two directories
> Attribute Old New
> --------- --- ---
> File mode 16893 16893
> uid 501 501
> gid 100 100
> ACL size 424 0
> ACL checksum 3721320641 0
> Xattr size 0 494
> Xattr checksum 0 3013615671
> 04.02.2008 12:48:39.468 : fileio.cpp (4627): fioCmpAttribs(): old
> attrib's data from build (IBM TSM 5.4.1.2)
> 04.02.2008 12:48:39.468 : unxfilio.cpp (1825): -->Attribs
> different: returning ATTRIBS_BACKUP
>
> It is interesting that in Technote swg21249081 libacl is mentioned as a
> potential problem to look for, but not getxattr. I made sure that libacl
> is present, but the strace output shows that it isn't used.
>
> This is very annoying. It means that the TSM client will probably force a
> backup of every file with an ACL when I upgrade from 5.3 to 5.4.
>
> Is this change documented somewhere? Is there a way to go back to either
> using libacl with the 5.4 client, or get the same ACL size/checksum from
> the Attributes comparison?
>
> Rainer Schöpf
>
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> Carl-Zeiss-Straße 51
> 55129 Mainz
>
> Dr. Rainer Schöpf
> Leiter Software/Softwareentwicklung
>
> Mail: rainer.schoepf AT proteosys DOT com
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> Fax: +49-(0)6131-50192-11
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--
__________________________________
Leandro Mazur
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