mixle wrote:
> 
>>> mixle wrote: 
>>> Quote:
>>> Does BackupPC redownload all files to make a new "full" download, or does 
>>> it simply "fill in" the last good full backup and all incrementals since? 
>>>
>>> The host I'm backing up takes 2+ days to backup, so it would be great if it 
>>> could just fill in + move forward rather than download all again. 
>>>
>>> I'm really impressed with the ease of use of this software! It's running 
>>> nicely on my DNS-323 (had to turn compression off though, because it was 
>>> taking years to backup otherwise). 
>>>
>>> 1.18 MB/s (not sure what other people are getting for speed on these 
>>> things). 
>>
>> This depends on your XferMethod. The smb/tar methods do transfer 
>> everything for a full and rebuild the whole tree. This is the only way 
>> to find deletions and the new locations of old files under renamed 
>> directories. The rsync/rsyncd methods only transfer the differences 
>> since the last full (but need more RAM while doing it). See the docs 
>> for IncrLevels if you want to base incrementals on previous incrementals.
> 
> 
> I believe I may have worded my question wrong.
> 
> Is BackupPC capable of making 'synthetic' full backups by combining a 
> previous full backup and subsequent incrementals to form a new 'synthetic' 
> full backup (synthetic since it has not been copied again from the host)?
> 
> Sorry if I misunderstood your response.
> 
> Unfortunately RAM is critically small on my DNS-323. :(

I don't think so, but maybe someone else can comment.  I don't think it 
is possible to do this correctly with smb/tar since they have no way to 
track deletions/moves/renames in incrementals (well, gnutar does, but 
backuppc doesn't use that option).

If you have a linux box with more resources on the network, maybe it 
would work better to NFS-mount the NAS instead of running backuppc on it 
directly.

-- 
   Les Mikesell
    lesmikesell AT gmail DOT com



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