to get these two hosts into a cluster would i need to castrate them down to nehalem, or would i be able to botch the db for the 2nd host from "EPYC-IBPB" to "Opteron_G5"? I don't really want to drop them down to nehalem, so either I can botch the 2nd cpu so they are both on opteron_G5 or i'll have to buy a new CPU for host1 to bring it up to "EPYC-IBPB"; I have; host1; # vdsm-client Host getCapabilities | grep cpuFlags | tr "," "\n" | grep model_ | sed 's/"//' | sort -n model_486 model_Conroe model_cpu64-rhel6 model_kvm32 model_kvm64 model_Nehalem model_Opteron_G1 model_Opteron_G2 model_Opteron_G3 model_Opteron_G4 model_Opteron_G5 <<<< "AMD FX(tm)-8350 Eight-Core Processor" model_Penryn model_pentium model_pentium2 model_pentium3 model_qemu32 model_qemu64 model_Westmere host2; # vdsm-client Host getCapabilities | grep cpuFlags | tr "," "\n" | grep model_ | sed 's/"//' | sort -n model_486 model_Conroe model_Dhyana model_EPYC model_EPYC-IBPB <<<< "AMD Ryzen 7 1700X Eight-Core Processor" model_kvm32 model_kvm64 model_Nehalem model_Opteron_G1 model_Opteron_G2 model_Opteron_G3 model_Penryn model_pentium model_pentium2 model_pentium3 model_qemu32 model_qemu64 model_SandyBridge model_Westmere Thanks, Mike