Follow-up to my other response to your query: To answer your question
directly, I forget when the attribute update was introduced, but this
behavior has been there for a very long time, at least as far back as
version 4 if not before then.

Best regards,

Andy Raibeck
IBM Software Group
Tivoli Storage Manager Client Product Development
Level 3 Team Lead
Internal Notes e-mail: Andrew Raibeck/Hartford/IBM@IBMUS
Internet e-mail: storman AT us.ibm DOT com

IBM Tivoli Storage Manager support web page:
http://www.ibm.com/support/entry/portal/Overview/Software/Tivoli/Tivoli_Storage_Manager

"ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu> wrote on 2011-06-20
09:04:09:

> From: Rick Adamson <RickAdamson AT WINN-DIXIE DOT COM>
> To: ADSM-L AT vm.marist DOT edu
> Date: 2011-06-20 09:07
> Subject: Re: EMERGENCY QUESTION: RESTORE ONLY PERMISSIONS?
> Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu>
>
> Great info Andy. What version did this approach start with, as in the
> past I have been experienced that when our security department changes
> ACLS (Win) on a file server TSM historically has re-backed up all files
> associated with the change, but I haven't checked it in some time to see
> if it still happens.
>
>
> ~Rick
>
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of
> Andrew Raibeck
> Sent: Friday, June 17, 2011 5:23 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: [ADSM-L] EMERGENCY QUESTION: RESTORE ONLY PERMISSIONS?
>
> Just to clarify:
>
> - When a file is backed up, it's "simple" or "basic" attributes are
> backed
> up with that file.
>
> - During incremental backup, if only the basic attributes change, then
> the
> entire file is not backed up again. Rather, just the attributes are
> updated for the active backup version. The attributes for older backup
> versions are not changed.
>
> - This behavior applies not only to Unix and Linux, but to Windows as
> well.
>
> Best regards,
>
> Andy Raibeck
> IBM Software Group
> Tivoli Storage Manager Client Product Development
> Level 3 Team Lead
> Internal Notes e-mail: Andrew Raibeck/Hartford/IBM@IBMUS
> Internet e-mail: storman AT us.ibm DOT com
>
> IBM Tivoli Storage Manager support web page:
> http://www.ibm.com/support/entry/portal/Overview/Software/Tivoli/Tivoli_
> Storage_Manager
>
> "ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu> wrote on 2011-06-17
> 17:15:09:
>
> > From: Remco Post <r.post AT PLCS DOT NL>
> > To: ADSM-L AT vm.marist DOT edu
> > Date: 2011-06-17 17:17
> > Subject: Re: EMERGENCY QUESTION: RESTORE ONLY PERMISSIONS?
> > Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT vm.marist DOT edu>
> >
> > On 17 jun 2011, at 21:32, john d wrote:
> >
> > > Do not think you are correct on TSM only keeps one version
> permission
> -  I
> >
> > It depends, for unix file systems the simple permission bits are
> > kept in the database, only one version. That's why, when only the
> > permissions change, TSM will only update the file, not back it up.
> >
> > For windows and unix extended ACLs, those are stored with the file
> > in the storage pool, and multiple versions are kept.
> >
> > > believe it would keep IAW the policy settings.    Can you show the
> link
> > > which you are getting this info from.   Thanks
> > >
> > >
> >
> > --
> > Met vriendelijke groeten/Kind Regards,
> >
> > Remco Post
> > r.post AT plcs DOT nl
> > +31 6 248 21 622