What is your IncrLevels setting? I bet you a donut that it is "1", which
means each incremental references the last full. So over time, more and
more files have changed from the last full.
Try setting IncrLevels to "1, 2, 3, 4, 5, 6". This means each
incremental will only back up files changed since the last incremental.
Regards,
Tyler
On Thu, 2010-10-14 at 15:03 +0200, Andrea Visinoni wrote:
> On a brand new Dell server with RAID5 SAS disk configuration we get this
> backup results...and slowing down through time.
> The backup is local, from the server disk to the server disk.
> Changing compression level doesn't give results.
>
> Any Hints?
>
> Andrea
>
> Backup Summary
> Click on the backup number to browse and restore backup files.
>
> Backup# Type Filled Level Start Date Duration/mins Age/days Server
> Backup Path
> 20 full yes 0 10/6 02:00 1859.4 8.3 /home/backuppc/pc/localhost/20
> 21 incr no 1 10/7 20:00 16.9 6.5 /home/backuppc/pc/localhost/21
> 22 incr no 1 10/8 20:00 24.2 5.5 /home/backuppc/pc/localhost/22
> 23 incr no 1 10/9 20:00 24.4 4.5 /home/backuppc/pc/localhost/23
> 24 incr no 1 10/10 20:00 24.5 3.5 /home/backuppc/pc/localhost/24
> 25 incr no 1 10/11 20:00 33.2 2.5 /home/backuppc/pc/localhost/25
> 26 incr no 1 10/12 20:00 42.4 1.5 /home/backuppc/pc/localhost/26
>
> Xfer Error Summary
>
>
> Backup# Type View #Xfer errs #bad files #bad share #tar errs
> 20 full XferLOG, Errors 1 0 0 0
> 21 incr XferLOG, Errors 0 0 0 0
> 22 incr XferLOG, Errors 0 0 0 0
> 23 incr XferLOG, Errors 0 0 0 0
> 24 incr XferLOG, Errors 0 0 0 0
> 25 incr XferLOG, Errors 0 0 0 0
> 26 incr XferLOG, Errors 0 0 0 0
>
> File Size/Count Reuse Summary
> Existing files are those already in the pool; new files are those added
> to the pool. Empty files and SMB errors aren't counted in the reuse and
> new counts.
>
> Totals Existing Files New Files
> Backup# Type #Files Size/MB MB/sec #Files Size/MB #Files Size/MB
> 20 full 171785 36906.0 0.33 171511 36839.2 339 67.8
> 21 incr 600 151.5 0.15 168 25.5 538 126.1
> 22 incr 841 197.8 0.14 628 146.8 263 51.2
> 23 incr 841 197.8 0.14 841 197.8 2 0.0
> 24 incr 841 197.8 0.13 841 197.8 2 0.0
> 25 incr 1109 261.0 0.13 889 201.3 275 59.9
> 26 incr 1365 327.0 0.13 1142 263.0 273 64.1
>
> Compression Summary
> Compression performance for files already in the pool and newly
> compressed files.
>
> Existing Files New Files
> Backup# Type Comp Level Size/MB Comp/MB Comp Size/MB Comp/MB Comp
> 20 full 3 36839.2 10261.3 72.1% 67.8 12.9 80.9%
> 21 incr 3 25.5 6.9 72.8% 126.1 16.5 86.9%
> 22 incr 3 146.8 21.8 85.1% 51.2 7.9 84.5%
> 23 incr 3 197.8 29.7 85.0% 0.0 0.0 44.1%
> 24 incr 3 197.8 29.7 85.0% 0.0 0.0 44.0%
> 25 incr 3 201.3 29.9 85.2% 59.9 8.5 85.8%
> 26 incr 3 263.0 38.5 85.4% 64.1 9.4 85.3%
>
>
> caronte:/etc/backuppc# cat localhost.pl
> #
> # Local server backup of /etc as user backuppc
> #
> $Conf{XferMethod} = 'tar';
>
> $Conf{TarShareName} = ['/etc', '/home/users', '/home/pub',
> '/home/utente', '/roo
> t'];
>
> $Conf{TarClientCmd} = '/usr/bin/env LC_ALL=C /usr/bin/sudo $tarPath -c
> -v -f - -
> C $shareName'
> . ' --totals';
>
> # remove extra shell escapes ($fileList+ etc.) that are
> # needed for remote backups but may break local ones
> $Conf{TarFullArgs} = '$fileList';
> $Conf{TarIncrArgs} = '--newer=$incrDate $fileList';
>
> # Livello minimo di compressione dei files
> $Conf{CompressLevel} = 3
> caronte:/etc/backuppc#
>
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------------------------------------------------------------------------------
Beautiful is writing same markup. Internet Explorer 9 supports
standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3.
Spend less time writing and rewriting code and more time creating great
experiences on the web. Be a part of the beta today.
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