We've always been getting a lot of these alerts in Veeam, however, it does not seem that there's any problem (al least not any impact). I've been trying to match up the events in vCenter, but we are not getting any alarms there regarding this. Does anyone know what I should be looking for? I'd like to do some more of my own checking before opening a case. It's not limited to happening during backups or other snapshot activities. For now, I've disabled that alarm in Veeam, but I would like to reenable it. I'm using 9.5u1 of Veeam and vCenter 5.5 Update 3f.