vSphere Update Manager pairs with vCenter Server to enable patch and version management of ESXi hosts and virtual machines.

vSphere Update Manager can remediate the following objects over the network:

VMware Tools and VMware virtual machine hardware upgrade operations for virtual machines

ESXi host patching operations

ESXi host upgrade operations

You use the vSphere Update Manager service on each vCenter Server Appliance and deploy a vSphere Update Manager Download Service (UMDS) in Region A and Region B to download and stage upgrade and patch data.

You configure vSphere Update Manager to apply updates on the management components of the SDDC according to the objectives of this design.