Low-trust ZFS Replication on TrueNAS

TrueNAS’s snapshot replication functionality is useful for implementing off-site backups. I currently use this functionality to perform a two-way cross-backup of two TrueNAS installations. Unfortunately, the current version of TrueNAS doesn’t seem to provide many options for building strong protections against local compromise (e.g. ransomware attacks that target TrueNAS) having the ability to…