in "before" there are snapshots taking up a lot of space called rpool/safe/postgres@2020-02-06T03:40Z which is in a different snapshot format from recent snapshots rpool/safe/postgres@2020-11-15T16:30:00Z -- znapzend only pruned the ones matching the recent name, causing lots of very old data to keep a significant amount of disk space.
up to 335G free
just from deleting those very old snaps
cole-h: can you post this summary to the issue?
Ah, I see. Old snapshots had a different name (time) format than new ones, so znapzend ignored them
note they appear to be small because the data on them is shared among multiple, and the "disk used" is misledingly calculated
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hydra has become unreachable for me. It was there ~15 minutes ago.