Initial backups on the new server would take longer than what you're seeing
with the established server which only needs to do changes after having
done the initial full. Your new server has already done the initial
backups of your host and it's the subsequent backups that are taking so
long?
But on this topic, my new server seems slow, with only a 3-4 MB/s speed
rating on a GB network (Windows backup over SMB). Is this normal? What
kind of speeds should I be expecting?
On Thu, Jul 5, 2012 at 7:12 AM, jonas <jo...@freesources.org> wrote:
> Hello,
>
> recently we were forced to re-setup a large BackupPC-server with up to
> 150 clients and 5.0TB (12 disks in RAID10). This was several weeks ago.
>
> Unfortunately the server has problems keeping up with the backups since
> then. (see
> http://sourceforge.net/mailarchive/message.php?msg_id=29433950) Even
> after enabling rsync checksum caching and playing around with raising or
> lowering MaxBackups, MaxPendingCmds, the server doesn't scale as
> expected. And just for the record: before the re-setup, it managed the
> same amount of backups and the same hosts.
>
> Now while comparing BackupPC logs to another big BackupPC-server on our
> side, I recognized that BackupPC-Link takes ages for every backupped
> host on the new server, while it's incredibly fast on the other BackupPC
> server.
>
> Even for hosts with several 100GB of data, BackupPC_Link takes only few
> minutes on the old BackupPC server. On the new (re-setup) one, it takes
> several hours up to days for backupped hosts.
>
> Do you have any idea or suggestions why BackupPC_Link takes that long
> and how we can change it?
>
> Best regards,
> jonas
>
>
>
>
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