On 06/14 03:38 , Bowie Bailey wrote:
> On 6/14/2018 3:27 PM, Michael Stowe wrote:
> > Why are you using rsyncd over the loopback instead of … rsync?
> >
> 
> Mainly because that's the way all of my other clients are being backed
> up and what I found when I searched for how to back up a local
> filesystem said to do it the same way as the others and just point it to
> localhost.  I use rsyncd rather than rsync to avoid the ssh overhead.  I
> expected a backup done via the loopback interface to be fast since it
> doesn't have the normal networking bandwidth limitations.

I've always used tar for local backups. The advantage of rsync is greater in
bandwidth-constrained environments because it saves moving whole files over
the network. However, if the file needs to be read anyway to see if anything
has changed, then nothing is saved because the local machine is the same as
the remote machine.

I may be incorrect about some of my understanding here, I know rsync does a
few things which tar does not, but which slip my brain at the moment. Also,
some uses of rsync may be more efficient than this by only checking
timestamps.

-- 
Carl Soderstrom
Systems Administrator
Real-Time Enterprises
www.real-time.com

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