Enabling EVC on a Cluster that is managing the vCenter Server
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Enabling EVC on a Cluster that is managing the vCenter Server

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Article ID: 311795

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Updated On:

Products

VMware vCenter Server

Issue/Introduction

Symptoms:

Given is a Cluster with at least two hosts (host-a and host-b) with two different CPU Generation; in this case Sandy Bridge and Haswell.

The vCenter is running on host-b which has the older generation CPU host-a.



Environment

VMware vCenter Server Appliance 6.0.x

VMware vCenter Server Appliance 7.0.x

Resolution

To enable the EVC Mode on this cluster follow the following steps.

  1. Rename the existing cluster
  2. Create a new cluster with EVC in the desired mode enabled in this case Sandy Bridge.
  3. Shutdown all VMs on host-b
  4. Remove host-b from the Inventory of the vCenter
  5. Add host-b to the new cluster
  6. Power-off the vCenter VM running on host-a.
  7. Connect to host-a using either the Host-UI or the vSphere Client
  8. Remove the vCenter VM from the Inventory of host-a
  9. Connect to host-b using either the Host-UI or the vSphere Client
  10. Browse the Datastore that the vCenter VM is on and register the VM on host-b
  11. Power on the vCenter VM on host-b
  12. Connect to the vCenter Server using the web client
  13. Remove host-a from the old cluster
  14. Add host-a to the new cluster and power-on all VMs



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