Best remote backup method?

[Jeff Mohler]

Is there a free NDMP tool for Freebsd?

On 5/16/07, youshi10 at u.washington.edu <youshi10 at u.washington.edu> wrote:
>
> On Wed, 16 May 2007, Roland Smith wrote:
>
> > On Wed, May 16, 2007 at 01:38:13PM -0500, Paul Schmehl wrote:
> >>  I'm presently backing up two servers in a remote location to a usb
> drive
> >>  located elsewhere by using rsync over ssh (all three are FreeBSD
> boxes.)
> >>  After the recent discussion about dump, I'm wondering if I would gain
> >>  anything by using dump rather than rsync.  Has anyone used both?  Any
> >>  thoughts as to which is "better" and why?
> >>
> >>  The rsync command I use is:
> >>  rsync -avz ${LOCALDIR} -e "ssh -i ${KEY}" ${REMOTEHOST}:${REMOTEDIR}
> >
> > With dumps it is easier to keep different ones around. If you rsync a
> > directory, all previous changes are lost. If you rsync to a different
> > directory every time to keep different versions, you might as well use
> > tar, because rsync won't save a lot of space/time in that case. And dump
> > will backup all ufs2 features such as flags and acls. I'm not sure if
> > rsync can manage that. It's also easy to compress dumps, which can save
> > a lot of space.
>
> Tar is expensive time-wise anyhow after a while if you use compression.
>
> Also, rsync does diffs on files, which can become expensive in terms of
> time.
>
> -Garrett
>
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