Buttersink measures unrelated snapshots when syncing.

[ChojinDSL]

So I have multiple btrfs subvolumes, e.g. /home or /var/lib/docker

I store the snapshots from those subvolumes under /mnt/SNAPSHOTS/

In that directory I have snapshots from /, from /home and other unrelated locations.

If I run buttersink on that directory, it will measure and compare snapshots from different subvolumes, even if they have no parent <-> child relationship, e..g. comparing /home with /var/lib/docker snapshots.

Is this by design? Is it assumed that all snapshots in a directory are related to each other?

[AmesCornish]

Chojin,

Yes, that's by design. The parent/child relationship doesn't always exist for snapshots where you'd expect it.

• Ames

On Wed, Jun 3, 2020 at 12:41 PM ChojinDSL [email protected] wrote:

So I have multiple btrfs subvolumes, e.g. /home or /var/lib/docker

I store the snapshots from those subvolumes under /mnt/SNAPSHOTS/

In that directory I have snapshots from /, from /home and other unrelated locations.

If I run buttersink on that directory, it will measure and compare snapshots from different subvolumes, even if they have no parent <-> child relationship, e..g. comparing /home with /var/lib/docker snapshots.

Is this by design? Is it assumed that all snapshots in a directory are related to each other?

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