On 3/1/2010 1:16 PM, anethema wrote:
>
> Thanks that does help.
> One more question..
>
> Since I'm using rsync for all my hosts, the pool supposedly consolidates all 
> data even if doing a full backup.

The pool consolidates all identical data, rsync or not.

> Is there then any difference in a full backup or a filled incremental in 
> terms of hard drive usage or transfer bandwidth needed? Or does it just 
> transfer the difference and then create a full backup with a full backup's 
> hard drive space etc.

With rsync, incrementals skip files where the timestamp and length match 
your existing copy.  Fulls do a block checksum comparison to verify the 
data.  In either case, only changed data is transferred, but on the 
server side a complete new file is constructed from the existing and new 
data, then it is added to the pool.

> Also if the data is corrupted on one of the fulls and it is using the pool to 
> save space, if it is just consolidating in the pool won't that corrupt all my 
> full backups?

Pool matching is done based on the file content, not the name.  Backuppc 
won't know what you mean by 'corrupted', but if the content is 
different, it becomes a different pool entry, not linked to existing 
ones with different content.

-- 
   Les Mikesell
    lesmikesell AT gmail DOT com

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