Hi, i cannot deploy hyperconverged 4.4.6 replica 3 on "centos stream 8" with 4216 processor. Demployment with intel 4210 is ok. Demployment with centos 8.4 is ok. The differences of cat /proc/cpuinfo are only microcode: centos 8: 0x5003006 centos 8 stream: 0x5003102 I try to install on centos 8 and successfully upgrade to centos stream 8 but engine cannot change version of cluster from 4.5 to 4.6 with error: "Cannot change Cluster compatibility version where there are no hosts in the Cluster which support that version" and log says: "Host moved to Non-Operational state as host CPU type is not supported in this cluster compatibility version or is not supported at all" Any ideas? Thanks in advance. Best regards. ps: if is need.. dell poweredge R440 cat /proc/cpuinfo: processor : 31 vendor_id : GenuineIntel cpu family : 6 model : 85 model name : Intel(R) Xeon(R) Silver 4216 CPU @ 2.10GHz stepping : 7 microcode : 0x5003102 cpu MHz : 2445.408 cache size : 22528 KB physical id : 0 siblings : 32 core id : 12 cpu cores : 16 apicid : 25 initial apicid : 25 fpu : yes fpu_exception : yes cpuid level : 22 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cdp_l3 invpcid_single intel_ppin ssbd mba ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm mpx rdt_a avx512f avx512dq rdseed adx smap clflushopt clwb intel_pt avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local dtherm ida arat pln pts pku ospke avx512_vnni md_clear flush_l1d arch_capabilities bugs : spectre_v1 spectre_v2 spec_store_bypass swapgs taa itlb_multihit bogomips : 4200.00 clflush size : 64 cache_alignment : 64 address sizes : 46 bits physical, 48 bits virtual rpm -qa|grep ovirt: ovirt-ansible-collection-1.4.2-1.el8.noarch ovirt-hosted-engine-ha-2.4.7-1.el8.noarch ovirt-openvswitch-ovn-2.11-0.2020061801.el8.noarch ovirt-host-dependencies-4.4.6-1.el8.x86_64 cockpit-ovirt-dashboard-0.15.0-1.el8.noarch ovirt-openvswitch-2.11-0.2020061801.el8.noarch ovirt-openvswitch-ovn-host-2.11-0.2020061801.el8.noarch ovirt-imageio-common-2.1.1-1.el8.x86_64 python3-ovirt-engine-sdk4-4.4.12-1.el8.x86_64 ovirt-vmconsole-1.0.9-1.el8.noarch ovirt-imageio-client-2.1.1-1.el8.x86_64 python3-ovirt-setup-lib-1.3.2-1.el8.noarch ovirt-release44-4.4.6.3-1.el8.noarch ovirt-provider-ovn-driver-1.2.33-1.el8.noarch ovirt-host-4.4.6-1.el8.x86_64 ovirt-vmconsole-host-1.0.9-1.el8.noarch ovirt-python-openvswitch-2.11-0.2020061801.el8.noarch ovirt-openvswitch-ovn-common-2.11-0.2020061801.el8.noarch ovirt-imageio-daemon-2.1.1-1.el8.x86_64 ovirt-hosted-engine-setup-2.5.0-1.el8.noarch -- _____________________________________ Radchenko Anatolii via Manoppello, 83 - 00132 Roma tel. 06 96044328 cel. 329 6030076 Nota di riservatezza : ai sensi e per gli effetti della Legge sulla Tutela della Riservatezza Personale (Legge 196/03) si precisa che il presente messaggio, corredato dei relativi allegati, contiene informazioni da considerarsi strettamente riservate, ed è destinato esclusivamente al destinatario sopra indicato, il quale è l'unico autorizzato ad usarlo, copiarlo e, sotto la propria responsabilità, diffonderlo. Chiunque ricevesse questo messaggio per errore o comunque lo leggesse senza esserne legittimato è avvertito che trattenerlo, copiarlo, divulgarlo, distribuirlo a persone diverse dal destinatario è severamente proibito,ed è pregato di rinviarlo al mittente.