Re: [rdiff-backup-users] Measuring transfer size

[Dave Kempe]

Hi,
this has been discussed before - ultimately, the actual transferred data cannot 
be measured by rdiff-backup as it uses SSH, which may or may not compress 
things, and there is overhead and compression to factor in. You need to use a 
tool external to the ssh session to measure the traffic used by a typical 
backup session.
dave

----- "Torrance" <address@hidden> wrote:

> Hi all,
> 
> I have a (possibly) really simple question: is it possible to work out
>  
> from the session statistics the total amount of data transferred  
> during a backup?
> 
> For example:
> 
> --------------[ Session statistics ]--------------
> StartTime 1249920926.00 (Tue Aug 11 04:15:26 2009)
> EndTime 1249921122.67 (Tue Aug 11 04:18:42 2009)
> ElapsedTime 196.67 (3 minutes 16.67 seconds)
> SourceFiles 2
> SourceFileSize 482343704 (460 MB)
> MirrorFiles 2
> MirrorFileSize 482171086 (460 MB)
> NewFiles 0
> NewFileSize 0 (0 bytes)
> DeletedFiles 0
> DeletedFileSize 0 (0 bytes)
> ChangedFiles 2
> ChangedSourceSize 482343704 (460 MB)
> ChangedMirrorSize 482171086 (460 MB)
> IncrementFiles 2
> IncrementFileSize 4839591 (4.62 MB)
> TotalDestinationSizeChange 5012209 (4.78 MB)
> Errors 0
> --------------------------------------------------
> 
> I would have guessed it was the IncrementFileSize + the NewFileSize, 
> 
> ie. in this case 4.62MB (or probably this figure gzipped).
> 
> Is this correct? I have very limited data allowances and I need to be 
> 
> able to monitor nightly backups of some fairly large datasets.
> 
> Thanks in advance,
> Torrance
> 
> 
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