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  • 1.  Enabling EVC on a VCF 5.2 Management Workload Domain Cluster

    Posted Jul 01, 2025 11:14 AM
    Dear all, good morning. I'm contacting you to ask if anyone has enabled EVC on a vSAN cluster in VCF with vCenter within the cluster.
    I hope you can help me. I'm getting the following error when trying to enable EVC: The host cannot be admitted to the cluster's current Enhanced vMotion Compatibility mode. Powered-on or suspended virtual machines on the host may be using CPU features hidden by that mode.
     
    I look forward to your comments.
    Thank you very much.
    Best regards.


  • 2.  RE: Enabling EVC on a VCF 5.2 Management Workload Domain Cluster

    Posted Jul 01, 2025 05:36 PM

    @Guillermo Argañaras,
    Hey, this error typically means that powered-on or suspended VMs are using CPU features that would be masked by the EVC mode you're trying to enable. And yes-this includes the vCenter VM itself, which complicates things since it's managing the cluster you're trying to modify.

    Well, VMware does not recommend enabling EVC post-deployment in VCF-managed vSAN clusters.



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  • 3.  RE: Enabling EVC on a VCF 5.2 Management Workload Domain Cluster

    Posted Jul 02, 2025 09:37 AM

    Although VCF 5.2 itself does not provide direct settings for EVC via the SDDC Manager, it is important to note that:

    • EVC is not managed by VCF, but by vSphere at the cluster level.
    • When setting up workload domains in VCF 5.2, you can configure EVC via the vSphere UI or API, provided you plan this in advance.
    • The official VCF 5.2 release notes and upgrade documentation do not explicitly mention EVC, which confirms that it falls outside the direct scope of VCF.

    Original Message


  • 4.  RE: Enabling EVC on a VCF 5.2 Management Workload Domain Cluster

    Posted Jul 03, 2025 09:36 AM

    At cluster creation evc can be set.

    https://developer.broadcom.com/xapis/vmware-cloud-foundation-api/5.2.1/data-structures/ClusterCreationSpec/
    "evcMode": "One among: INTEL_MEROM, INTEL_PENRYN, INTEL_NEALEM, INTEL_WESTMERE, INTEL_SANDYBRIDGE, INTEL_IVYBRIDGE, INTEL_HASWELL, INTEL_BROADWELL, INTEL_SKYLAKE, INTEL_CASCADELAKE, INTEL_ICELAKE, INTEL_SAPPHIRERAPIDS, AMD_REV_E, AMD_REV_F, AMD_GREYHOUND_NO3DNOW, AMD_GREYHOUND, AMD_BULLDOZER, AMD_PILEDRIVER, AMD_STREAMROLLER, AMD_ZEN, AMD_ZEN2, AMD_ZEN3, AMD_ZEN4",


    But update cluster does not have evc.
    https://developer.broadcom.com/xapis/vmware-cloud-foundation-api/5.2.1/data-structures/ClusterUpdateSpec/

    Cheers,


    Original Message