Unable to vMotion after applying a host profile during a host upgrade

Products

• VMware vCenter Server

Issue/Introduction

When applying a Host Profile a Host may become unable to vMotion if any networks or datastores were not defined in the Host Profile. 

Environment

VMware ESXi

VMware vCenter Server

Cause

Networks or Datastores are not configured. By design, a host profile overwrites all settings and applies only those defined in the configuration. If nothing is specified, the Host Profile will remove the current configuration and replace it with nothing. 

Resolution

To configure a missing networks to a standard switch use the following document: How do I Set Up Networking with vSphere Standard Switches 

To configure a missing datastore use the following documents: Basic Administrative Operations for vSphere Datastores