I like ZFS Send and Receive, but I’m not totally sold on it. I’ve used rsync for decades, so I’m not giving it up anytime soon. Even so, I can see the value of ZFS Send and Receive for local migration and data management tasks as well as the backup and replication tasks that are typically talked about.
Ideas in IT come in waves, and recently I’ve been hearing about a great capability: On-demand live replicas of production virtual machines. Want to test your DR environment? Spin up a live sandbox in the cloud or at a service provider using VMware ESX. And if there’s a real disaster, you can always run there for real!