A bit of searching suggests that finding the current txg (transaction group) id might be helpful? https://www.delphix.com/blog/delphix-engineering/zfs-fundament

A bit of searching suggests that finding the current txg (transaction group) id might be helpful? https://www.delphix.com/blog/delphix-engineering/zfs-fundamentals-transaction-groups https://www.delphix.com/blog/delphix-engineering/zfs-fundame... A bit more turns up `zdb -e mainpool -ul` (or maybe without the -e?) that includes a bunch of txg ids along with tons of other stuff. I'd think there ought to be a less noisy way to find that, but I don't know where to start looking.