Evc Mode Compatibility Matrix. Jan 13, 2026 · What is EVC Mode and Why Does It Matter? Enhanc

Jan 13, 2026 · What is EVC Mode and Why Does It Matter? Enhanced vMotion Compatibility (EVC) is a vSphere cluster feature that masks CPU instruction differences between ESXi hosts with different processor generations. EVC will mask all the new generation features by presenting only the Lowest Common CPU Features configured on the cluster. Aug 27, 2025 · This article provides steps to enable Enhanced vMotion Capability (EVC) on a cluster when vCenter Server is installed on a virtual machine running in the cluster. Apr 2, 2020 · To simplify vMotion across CPU generations VMware has introduced Enhanced vMotion Compatibility (EVC). Discover how VMware EVC enhances VM migrations and maintenance by ensuring CPU compatibility across hosts. The EVC mode of a virtual machine determines the CPU and graphics features that a host must have in order for the virtual machine to migrate to that host and power on. Learn how to activate or change the vSphere Enhanced vMotion Compatibility (EVC) mode on an existing cluster to ensure vMotion CPU compatibility between the hosts in the cluster. Symptoms: While enabling EVC mode for a cluster, hosts are reported with below compatibility status: Jan 24, 2024 · VMware EVC Mode is a cluster-centric feature that fixes the compatibility issues of different CPU processors from different generations on the ESXi hosts in a cluster. Find compatibility information for Broadcom and VMware products. Feb 19, 2025 · If you want to create a VMware vSphere cluster with VMware ESXi hosts with different CPUs, you will need to enable EVC mode (VMware vSphere Enhanced vMotion Compatibility) to ensure compatibility between them. EVC automatically configures server CPUs with Intel FlexMigration or AMD-V Extended Migration technologies to be compatible with older servers. Wanted to Learn how to configure vSphere EVC to ensure that virtual machine migrations between hosts in the cluster do not fail because of CPU feature incompatibilities. Otherwise, when using different processor models in a cluster, it’s recommended that you use CPUs of the same generation. Learn about its benefits and setup process. I would have thought this would only be possible for VM's on host 3 however If I go to enable EVC it states its unable to admitt hosts 1 & 3 "The host cannot be admitted to the cluster's current Enhanced vMotion Compatibility mode. Jun 11, 2019 · vSphere Enhanced vMotion Compatibility (EVC) ensures that workloads can be live migrated, using vMotion, between ESXi hosts in a cluster that are running different CPU generations. If all the hosts in a cluster are compatible with a newer EVC CPU or Graphics (vSGA) mode, you can change the EVC CPU or Graphics (vSGA) mode of an existing EVC cluster. This results in having two EVC baselines for every microarchitecture. Apr 26, 2025 · EVC ensures that all hosts in a cluster present the same CPU feature set to virtual machines, even if the actual CPUs on the hosts differ. 0 a new EVC mode has been introduced. Using EVC prevents migrations with vMotion from failing because of incompatible CPUs. And finally, make sure that you’re using the same CPU vendor in a cluster to avoid errors when using vMotion, for example, either AMD or Intel. vSphere Virtual Machine Administration describes how to create, configure, and manage virtual machines in the VMware vSphere environment. Apr 25, 2013 · I've created a small table with a quick overview about EVC Modes with their appropriate CPU Series and Codenames used by Intel to denote their CPUs. Learn how Enhanced vMotion Compatibility works, step-by-step setup, best practices & troubleshooting. May 12, 2025 · Watch How to Determine the Available VMware EVC Mode Between Older and New ESX Host & more how to videos from our expert community at Experts Exchange. The general recommendation is to have EVC enabled as it will help you in the future where you’ll be scaling your clusters with new hosts that might contain new CPU models. Mixing AMD and Intel processors is not allowed. 5 Update 2 or higher and have compatible processors in your servers. I’ve also included additional Codenames that Jun 5, 2024 · The enhanced vMotion compatibility, or EVC mode, allows you to keep a standard set of CPU features across ESXi hosts in a cluster. May 4, 2023 · Compatibility: EVC mode may not be compatible with third-party applications or services requiring specific CPU features. EVC […] To improve CPU compatibility between hosts of varying CPU feature sets, some host CPU features can be hidden from the virtual machine by placing the host in an Enhanced vMotion Compatibility (EVC) cluster. As you know already, EVC is a cluster level feature, which makes it possible to have vMotion across different generations of CPU within the cluster. Hosts in an EVC cluster and hosts that you add to an existing EVC cluster must meet EVC requirements. I've created a table with a quick overview about EVC Modes with their appropriate CPU Series and Codenames used by AMD to denote their CPUs.

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