On Wednesday, February 7, 2024 12:17:03 AM CET Wols Lists wrote: > On 06/02/2024 16:19, J. Roeleveld wrote: > >> Ah! Got it. That's one of the things I've been trying to figure out > >> this entire thread, do I need to switch home and root to ZFS to take > >> advantage of its snapshot support for backups? In the case you're > >> describing the "source" filesystem(s) can be anything. It's only the > >> _backup_ filesystem that needs to be ZFS (or similar). > > > > If you want to use snapshots, the filesystem will need to support it. > > (either LVM or ZFS). If you only want to create snapshots on the > > backupserver, I actually don't see much benefit over using rsync. > > Because snapshotting uses so much less space? > > So much so that, for normal usage, I probably have no need to delete any > snapshots, for YEARS?
My comment was based on using rsync to copy from the source to the backup filesystem. > Okay, space is not an expensive commodity, and you don't want too many > snapshots, simply because digging through all those snapshots would be a > nightmare, but personally I wouldn't use a crude rsync simply because I > prefer to be frugal in my use of resources. What is "too many"? I currently have about 1800 snapshots on my server. Do have a tool that ensures it doesn't get out of hand and will remove several over time. -- Joost
