2011/1/13 Lawrence Strydom <qhol...@gmail.com>
> Hi And thanks for all the replies so far.
>
> I'm running Bacula 5.0.3 on OpenSuSE 11.3. Self compiled with the following
> configure options:
>
> * --enable-smartalloc --sbindir=/usr/local/bacula/bin
> --sysconfdir=/usr/local/bacula/bin -with-mysql -with-openssl -enable-bat
> -sysconfdir=/etc/bacula -enable-tray-monitor*
>
> Here are my job and fileset deffinitions:
>
> ###################################################################
>
>
>> JobDefs {
>> Name = "XPclients"
>> Type = Backup
>> Level = Incremental
>> FileSet = "XP Set"
>> Schedule = "WeeklyCycle"
>> Storage = File
>> Messages = Standard
>> Pool = File
>> Priority = 10
>> Reschedule On Error = yes
>> Reschedule Interval = 1 hours
>> Reschedule Times = 10
>>
>> Write Bootstrap = "/home/bacula/bacula/working/%c.bsr"
>> }
>>
>
>
>
> FileSet {
> Name = "XP Set"
>
> Include {
> Options {
> signature = MD5
> compression = GZIP
> }
>
> File = "C:/documents and settings"
> }
>
>
> ########################################################################################
>
>
> I understand that something is adding data and logically the backup should
> grow. What I don't understand is why the entire file has to be backed up if
> only a few bytes of data has changed. It is mainly outlook.pst files and
> MSSQL databse files that cuase these large backups. Some of these files are
> several GB.
>
> My understanding of an incremental backup is that only changed data is
> backed up. It seems that at the moment my Bacula is doing differential
> backups, ie backing up the entire file if the timestamp has changed, even
> though I have configured it for incremental.
>
> regds
>
> Lawrence
>
>
>From the first reply to your first email:
<quote>
Yes. The entire file is backed up again when gets modification.
Incremental backups include all modified files since last backup (Full,
Incremental ou differential). Incremental and differential are file based.
if you have a 100GB file and this was modified, it will be backed up and
will use this space again.
Kleber
</quote>
-Blake
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