Your file system is not a backup technique. All file systems will fail. The only time I’ve had ZFS fail, was when both drives in a mirror pool died within 8

Your file system is not a backup technique. All file systems will fail. The only time I’ve had ZFS fail, was when both drives in a mirror pool died within 8 minutes of another. No filesystem would save you there. Since ZFS has a replication protocol (ZFS send) recovery was basically a few ZFS revc calls into a new pool.