i looked at my archive history hear and i have a number of hosts than do
incrementals take like 6 minutes and fulls like 46 minutes
On Feb 19, 2008 4:07 PM, Carl Wilhelm Soderstrom <[EMAIL PROTECTED]>
wrote:
> On 02/19 05:53 , Raman Gupta wrote:
> > Carl Wilhelm Soderstrom wrote:
> > >>> If you're running >=v3 the following option will make all the
> incrementals
> > >>> sync against the previous incremental, instead of the last full.
> This keeps
> > >>> them from growing quite as quickly. (It's the behavior you expect
> from
> > >>> rsync).
> > >>>
> > >>> $Conf{IncrLevels} = [1, 2, 3, 4, 5, 6];
> > >>>
> > >> I was under the assumption that BackupPC never transfers the same
> file
> > >> twice unless it changed after the last backup (either full or
> > >> incremental), even in the 2.x version. Was that an invalid
> assumption
> > >> on my part?
> > >
> > > That is incorrect. Backuppc does its incrementals against the last
> full; not
> > > against the previous incremental (unless you set $Conf{IncrLevels} =
> [1, 2,
> > > 3, 4, 5, 6];).
> >
> > So is it correct to say that when using rsync, its probably more
> > efficient to just turn off incrementals and always do fulls?
>
> No, and a brief examination of the reports will make this clear.
> I'm not thoroughly clear on the difference; but backuppc 'fulls' using
> rsync
> do a more thorough set of checks than the 'incrementals'.
>
> Incrementals, even using rsync, are usually much faster than fulls.
>
> --
> Carl Soderstrom
> Systems Administrator
> Real-Time Enterprises
> www.real-time.com
>
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