Hi Eric,

On UNIX and Linux systems, if only file permissions have changed, then the
latest backup copy is updated with the changed permissions; it is not
backed up again in full.

>From the online documentation at
http://www-01.ibm.com/support/knowledgecenter/SSGSG7_7.1.1/com.ibm.itsm.client.doc/c_bac_fullpart.html:

Files are backed up when any of the following attributes change:
   * File size
   * Date or time of last modification
   * Extended Attributes
   * Access Control List

If only the following attributes change, the attributes are updated on the
Tivoli Storage Manager server, but the file is not backed up:
   * File owner
   * File permissions     <== This one
   * Inode
   * Group ID
   * Change time (ctime) attribute. See the updatectime option for details.
   (AIX and Linux only)
   * Icon location (Mac OS X only)
   * Type or creator (Mac OS X only)

Best regards,

- Andy

____________________________________________________________________________

Andrew Raibeck | Tivoli Storage Manager Level 3 Technical Lead |
storman AT us.ibm DOT com

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

Online documentation:
http://www.ibm.com/support/knowledgecenter/SSGSG7/welcome
Product Wiki:
https://www.ibm.com/developerworks/community/wikis/home/wiki/Tivoli%20Storage%20Manager

"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 2015-03-12
10:25:47:

> From: "Loon, EJ van (ITOPT3) - KLM" <Eric-van.Loon AT KLM DOT COM>
> To: ADSM-L AT VM.MARIST DOT EDU
> Date: 2015-03-12 10:26
> Subject: Linux permissions not restored
> Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
>
> Hi guys!
> Yesterday someone accidentally changed permissions on one of our
> Lotus Notes servers. A new backup was made yesterday evening, but we
> cannot restore the file with the old permissions. The client shows
> only one active file in TSM (backup date 05/17/2013) and when this
> one is restored the permissions are the same as today.
> The file looked like this the day before yesterday:
> -r-sr-xr-x 1 root bin 9092 Sep 16 2011 /app/LOTUSDOMINO/groupware/
> bin/slg14gpw/lotus/notes/85030/linux/bindsock
> This is the file after the restore:
> -r-xr-xr-x 1 slg12gpw dominoadm 9092 Sep 16 2011 /app/LOTUSDOMINO/
> groupware/bin/slg12gpw/lotus/notes/85030/linux/bindsock
> Why isn't it possible to restore the right permissions, even with
> the pitdate parameter? And why do I only see one file in TSM? I
> would expect two (one with the old permissions and one with the new)...
> Thanks for any help in advance!
> Kind regards,
> Eric van Loon
> AF/KLM Storage Engineering
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