How would this go doing RAID5 with LUKS encryption on top? Would it still do 1000Mbps read or writes?
Just signed up to say I'm seeing this problem too. I'm running an up to date OMV 3 server with Ubuntu clients and when the Ubuntu clients wake from sleep the servers CPU goes to 100%. If I reboot the clients the issue goes away, I can't test on Windows or MacOS as all the PC's in our house are Ubuntu based. In my case I think this bug is caused by the Ubuntu clients, probably something at the kernel level.