On 04/08/20 04:17, Dale wrote: > This drive is formatted with ext4. It doesn't have LVM or anything just > straight ext4. Given it is external, I didn't see the point of having > LVM on it and adding another layer to deal with when there is no > benefits to it.
LVM has a big advantage if not much (relatively) changes between backups. If you have let's say 900GB of data, your backup disk is 1TB, and say 20GB of data changes between backups, with LVM that drive could store 5 *full* backups! You could use btrfs to the same effect. Both LVM and btrfs offer snapshotting, so you take a snapshot before doing an in-place rsync, giving you one full backup per snapshot, but the drive is actually only storing the changes between snapshots. Probably run the backup much faster too. If this drive is used to store full backups, and only stores the one copy, it won't be that expensive/risky to reformat and try that? Cheers, Wol
