@the_jest According to my own tests not rebooting after patching XCP-ng hosts can cause several issues. Thats why Xen Orchestra GUI notes to reboot after updating. Documentation has further explanation for this and explains whole update procedure.

Hello! Just an idea but maybe the PCI link speed you are seeing is related to some sort of energy saving feature? Background: I have a Nvidia GPU in my PC and when there is no load the PCIe speed is lowered from PCIe 4.0 to 1.1 due to energy saving feature. [image: 1782894839133-fbd06c41-50cb-4334-9c98-92a3b6573389-image.jpeg] So yeah, I think @teddyastie 's idea is a good approach here. Try how your setup behaves during a workload.

Can't migrate an XO VM to any pool because of this error. You need to remove any CR copy that is halted to make migration work.

I've installed the latest updates to all hosts, and restarted everything. I also have all xcp-ng logs going into loki now, so next time something happens I will see everything lol. [image: 1782860175138-156f9ac1-f1bb-47f3-a789-8551c8614805-image-resized.jpeg]