Re: SV: SV: Multiple backup of a file that doesn't change?

Flemming,

The only possibilities I can think of:

- someone ran a selective backup of the file (how have you verified that
this is not the case?)

- trustee rights or other file attributes changed (not sure whether a
change in trustee rights would be reflected in modification date; similar
changes for Windows files do not show up in file modification date)

- copygroup has MODE=ABSOLUTE

- less likely, but not out of the realm of possibility with the little
information available: incrbydate backups of select files/directories are
being taken, but the entire file system is not backed up, so last file
system backup date is not updated.

As far as I know, there are no known problems with current versions of TSM
regarding the incremental backup of truly unchanged files.

Regards,

Andy

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

The only dumb question is the one that goes unasked.
The command line is your friend.
"Good enough" is the enemy of excellence.




Flemming Hougaard <flhou AT NETVAULTING DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
07/30/2003 06:21
Please respond to "ADSM: Dist Stor Manager"


        To:     ADSM-L AT VM.MARIST DOT EDU
        cc:
        Subject:        SV: SV: Multiple backup of a file that doesn't change?



Hi Richard

NetWare see's the modification date which belongs to the file it self...
not necessary a date/time set in the timespan the file have existed on the
filesystem... therefore you can have a modification date before the
creation date...

I have been going through the schedlog file for both dates... nothing
suspicios there...

My headache is really bad... ;o)

Regards
Flemming

-----Oprindelig meddelelse-----
Fra: Richard Sims [mailto:rbs AT BU DOT EDU]
Sendt: 30. juli 2003 15:13
Til: ADSM-L AT VM.MARIST DOT EDU
Emne: Re: SV: Multiple backup of a file that doesn't change?


> Opticut.exe (active), Modified: 01-12-1999 15:27:12, Created: 08-06-2001
> 18:19:25, Backed Up: 28-07-2003 21:15:17
> Opticut.exe (inactive), Modified: 01-12-1999 15:27:12, Created:
08-06-2001
> 18:19:25, Backed Up: 25-07-2003 03:31:21
>
> How can this happen????

I'm not familiar with NetWare (my brain is full), but to have a file
modified
before it is created doesn't sound quite right.  Maybe that's a NetWare
peculiarity in the way it establishes a file which came in from outside
with
an earlier mod stamp than when it's being planted at the site?  I would
also
consider computer clocks having been wrong at some point, including Y2K.

In any case, I would go beyond timestamp pondering and inspect the log
from
the backup done on the 25th, to see just what went on there.

  Richard Sims, BU