Amanda-Users

Re: Question about dump levels

2003-05-15 10:37:57
Subject: Re: Question about dump levels
From: Randy Pearson <blueboy AT bamafolks DOT com>
To: amanda-users AT amanda DOT org
Date: Thu, 15 May 2003 09:34:35 -0500
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On Thursday 15 May 2003 09:10 am, Gene Heskett wrote:
> On Thu May 15 2003 09:12, Randy Pearson wrote:
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> >Hi All,
> >
> >I've been using Amanda for quite some time (3-4 years) and have
> > been quite happy with it.  Thanks to all the developers for a
> > great backup system.
> >
> >Now for my question.  Does anybody know why level 0 and level 1
> > dumps of my disks would be the same approximate size always?
> >
> >I thought a level 1 dump supposed to be an incremental backup,
> > while level 0 is a full backup.  Here are some extracts for the
> > Amanda reports of the dumps of my /home disk.  Looks to me like
> > Amanda is backing up every file, no matter what the dump level
> > is.
> >
> >In case it makes any difference, this occurred with both versions
> > 2.4.3b2 and 2.4.4.
> >
> >Thanks for any advise you can give me.
> >
> >Randy
> >
> >May 14
> >- -------
> >DUMP SUMMARY:
> >                                     DUMPER STATS
> > TAPER STATS HOST  DISK             L ORIG-KB  OUT-KB COMP%
> > MMM:SS    KB/s  MMM:SS    KB/s - --------------------------------
> > ---------------------    -------------------- zev   /home
> >    1 7436050 4881984  65.7   43:26  1873.6   90:42   897.1
> >
> >May 13
> >- ------
> >                                     DUMPER STATS
> > TAPER STATS HOST  DISK             L ORIG-KB  OUT-KB COMP%
> > MMM:SS    KB/s  MMM:SS    KB/s - --------------------------------
> > ---------------------    -------------------- zev   /home
> >    1 7436050 4881984  65.7   43:26  1873.6   90:42   897.1
> >
> >May 9
> >- -----
> >                                     DUMPER STATS
> > TAPER STATS HOST  DISK             L ORIG-KB  OUT-KB COMP%
> > MMM:SS    KB/s  MMM:SS    KB/s - --------------------------------
> > ---------------------    -------------------- zev   /home
> >    0 7518580 4895872  65.1   42:29  1920.4   90:59   896.8
>
> We need more data Randy, like OS on both client and server, and
> networking access method.  Be aware that samba, because its windows
> based, has no proper concept of modifcation times for files, making
> all files look new most of the time.   You didn't say, but this
> walks and quacks a bit like that duck.  I get the same for my one
> and only vfat based dos partition right here on this machine.
> Fortunately this isn't an M$ house, and that 100 meg partition has
> only 10 megs or so on it.  Rom bios updates and such.


I do backup some Samba clients, but in this case the problem I'm concerned
about is when I backup a disk on the localhost itself.  Running Slackware 9.0
(kernel 2.4.20) and using Reiser FS.

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