Re: Homebuilt NAS Advice
On Sun, 9 Aug 2020 17:42:43 -0400
rhkramer@gmail.com wrote:
> On Sunday, August 09, 2020 12:22:16 PM Celejar wrote:
> > On Sun, 09 Aug 2020 10:53:30 -0400
> > Stefan Monnier <monnier@iro.umontreal.ca> wrote:
>
> > > Another advantage is that it lets you access a host's files even when
> > > that host is down (as long as the backup server is up, which is likely
> > > to always be the case).
> >
> > Perhaps I'm misunderstanding something here, but why can't you do that
> > with ordinary forward deltas, as long as all the necessary information
> > is stored with the backups?
>
> > Are you saying that classic forward-delta
> > based systems don't store backup metadata (or whatever the right term
> > is) on the backup server, but on the host?
>
> I don't think he is saying that (but I could be wrong) (and I think that is
> pretty clear from subsequent comments, but I wanted to perhaps make it a
> little more clear), iiuc, he's just pointing out things like the overhead on
> recovery when you have to take the base file and apply the forward deltas to
> it.
Perhaps, but that has nothing to do with whether the host is down or up
- any time you're doing a recovery, you're going to run into this
issue, insofar as it's an issue.
Celejar
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