Tyler J. Wagner wrote:
> I see 20 mbit/sec each to 3 hosts simultaneously (60 mbit total) using rsync 
> over SSH, GIGE LAN.  Files are the typical mix of user hosting files, mostly 
> small with some big media.
> 
> The server uses an ext3 filesystem on 3ware hardware RAID-5 with 6 SATA 
> drives 
> at 500 GB each.  Most hosts use either hardware RAID-1 or mdadm RAID-1 on 
> SATA 
> drives.  All desktops are single-drive SATA.

Backuppc is always going to be somewhat slower than native rsync because it is 
using a perl version on the server side and working against compressed copies, 
and on fulls it adds the --ignore-times option that forces the client to read 
all the files to compare block checksums.  I think there is also a difference 
in 
the way the transfer is reported, where backuppc shows the actual bytes 
transferred which may be a small number compared to the data the client has to 
read from its disk.  The important metric is just whether you can complete in 
the window of time you have.

-- 
   Les Mikesell
    lesmikesell AT gmail DOT com

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