Hi Matt,
Thanks for you reply. Just got a question, what if I
mount filesystems with the "noatime" options so that
when it accesses a file it does not update the atime
on the inode? What will amanda do then? Work on file
size?
Is there any way, I can force amanda to work on file
size rather than on the basis of "atime" for the
incremental backups.
Your help in this regard will be higly appareciated.
Thanks
Regards
haroon
--- Matt Hyclak <hyclak AT math.ohiou DOT edu> wrote:
> On Tue, Aug 09, 2005 at 12:33:26PM +1000, Haroon
> Anwar enlightened us:
> > I am having problem with incremental backups.
> Every
> > thing is working
> > fine. I force full backup of all my servers on
> > Saturday. From Sunday
> > to Friday I am taking incremental backup.
> >
> > It is working fine. But, what my understanding of
> > incremental backup
> > is, starting from level 0 backup, amanda will
> backup
> > only those files
> > which change. It should backup only the difference
> or
> > the changes. But
> > this does not seem to be happening. E.g, One of my
> > server disk is 18G.
> > On Saturday I backup 18G. But on Sunday, I expect
> > amanda to backup
> > only the difference. But, its backing up around
> 10G
> > still and I dont
> > think that the data on the server disk change that
> > much. All the other
> > servers are behaving in the same manner.
> >
> > Can someone help me how can I achieve only to
> backup
> > the new files or
> > the files that change when the incremental backup
> > kicks off.
> >
> > I force incremental backups by putting no-full
> line in
> > global secation
> > of the dumptype and inhereting global settings in
> the
> > other dumptypes.
> >
>
> First, you're really fighting what amanda was
> designed to do...you're trying
> to make "her" do what you want instead of letting
> her do her own thing.
>
> That being said, I would look at the 10GB of files
> and see what is causing
> them to be backed up. There are several things that
> could cause this, such
> as some script that accesses the files (changing
> their atime attribute,
> causing them to be considered new), etc. I would
> examine what processes are
> running on your servers that might be modifying the
> files in such a manner
> to get at the root of the problem.
>
> Matt
>
> --
> Matt Hyclak
> Department of Mathematics
> Department of Social Work
> Ohio University
> (740) 593-1263
>
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