I recently installed antivirus on my Core and Hyper-V virtual standby host. Since then I have been having all sorts of problems with exports failing. My core backs up 4 servers. 3 of them have roughly 100gb of data and the 4th is a file server that has 2 TB of data. I have noticed that sometimes the virtual standby exports try to export the complete servers again which creates a log jam and then everything starts to fail. I have added all recommend AV exclusions but they mostly pertain to the core and agents. I haven't been able to find any performance recommendations for virtual standby using hyper-V.