BackBlaze B2 - Bucket Bigger than Pool Usage

[KazuyaDarklight]

So the pool I'm backing up says 28.99TB used, I'm sending that up, encrypted to B2 and the bucket says 41.9TB (42927/1024). Any thoughts on why the bucket is so much bigger? No B2 Snapshots, Lifecycle is set to keep last version only. FreeNAS is set to "Sync" so it should be deleting or overwriting everything. Thoughts?

 

[KazuyaDarklight]

So the current (11.2U6) implementation of B2 sync fails to delete files in B2 after they've been deleted from the pool, regardless of retention configurations on either side. I've submitted a bug (https://jira.ixsystems.com/browse/NAS-103369), if this affects you, you can watch the issue status there and if you can, I recommend voting for the issue so development is aware of its impact on the user base.