[mastax]

ZFS replication is quite unreliable when used with ZFS native encryption, in my experience. Didn't lose data but constant bugs.

[brongondwana]

Yeah, we're only using ZFS replication for logs; we're using the Cyrus replication for emails because it has other sanity checks and data model consistency enforcement which is really valuable.

(And both are async. We'd need something like drbd for real synchronous replication)