I've never seen this issue before but I'm doing a restore from a local spinner to a local ZFS volume. It's taken the entire host node down to a crawl and while I can ping the node, I can't ssh into it. I've never had this happen. I've seen some really slow behavior with ZFS reading and writing. What used to restore in 5 minutes over ext4 is now taking 40-50 minutes - or longer. I'll have more information I believe when the restore is complete and I can get back into the machine - but right now it's killing me. The node and all of the vms just show a ? because the UI can't get any details. Thoughts?