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Sanity check - is rsyncing to a remote computer that has zfs snapshotting an okay way to back things up? (lemm.ee)

submitted 9 months ago by [email protected] to c/[email protected]

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I currently have two computers, one that has a big zfs raidz pool that I currently back everything up to. Right now, on my local computer I use rsnapshot to do snapshot backups via rsync to the remote zfs pool. I know I'm wasting a ton of space because I have snapshotting in the rsync backup, and then the zfs pool is snapshotted every day.

Does it make sense to just do a regular rsync into a backup directory on the zfs pool and then just rely on the zfs pool snapshotting for snapshotting?

Maybe eventually I will put the local machine on zfs and then just send the local zfs snapshots over, but that will take some time. Thanks!

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[–] [email protected] 4 points 9 months ago (1 children)

It'd be worth checking out Borg as an alternative to rsync. Borg will handle snapshotting, and automatically de-dupe on a block-by-block basis.

I use it for all of my remote backups, and it provides a lot of quality of life stuff that rsync isn't going to handle.

[–] [email protected] 1 points 9 months ago

So for this, would i make another zfs pool on my remote backup server that is not snapshotted? Like, the problem i have is that i have snapshotting via rsync, but then the whole remote server zfs pool is further snapshotted so there’s a lot of redundancy.