We will be offline for a few second as we reboot to load a new server kernel. We won't be down long. 

Well, if you weren't, how would we know?Forgot to post we are back up. Lol.
I don't remember backups slowing things to a crawl before, as this one did! What's different? Is the second server on-site? If so, it might have flooded the network interface. Just speculating...I started a database dump this morning and it look like it slowed everything down. Was just trying to back thing up to a second server.
Killed Gzip and speed came back.