Am Sun, Aug 01, 2021 at 11:36:36AM +0800 schrieb William Kenworthy: > >> Its not raid, just a btrfs single on disk (no partition). Contains a > >> single borgbackup repo for an offline backup of all the online > >> borgbackup repo's I have for a 3 times a day backup rota of individual > >> machines/data stores > > So you are borg’ing a repo into a repo? I am planning on simply rsync’ing > > the borg directory from one external HDD to another. Hopefully SMR can cope > > with this adequatly. > > > > And you are storing several machines into a single repo? The docs say this > > is not supported officially. But I have one repo each for /, /home and data > > for both my PC and laptop. Using a wrapper script, I create snapshots that > > are named $HOSTNAME_$DATE in each repo. > > Basicly yes: I use a once per hour snapshot of approximately 500Gib of > data on moosefs, plus borgbackups 3 times a day to individual repos on > moosefs for each host.
So you have:
Host A ──[hourly]──> Online-Borg A ─┐
├──[3/day]──> Offline-Borg
Host B ──[hourly]──> Online-Borg B ─┘
?
> 3 times a day, the latest snapshot is stuffed into a borg repo on moosefs
> and the old snapshots are deleted.
How do you stuff just the latest snapshot of a repo into another repo?
> 3. borgbackup often to keep changes between updates small - time to
> backup will stay short.
Apparently you are dealing with some kind of productive, high-availability
or high-throughput system. I only have my personal stuff, so I don’t mind it
taking a few minutes. That allows me to watch progress bars and numbers
going up. :)
> 4. borg'ing a repo into a repo works extreemly well - however there are
> catches based around backup set names and the file change tests used.
> (ping me if you want the details)
But what is the point of that? Why not simply keep the last x hourly/
daily/weekly snapshots? The only thing I can think of is to have a
small(ish) short-term repo and keep the larger archival repo separate.
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