You must stop the target vRealize Automation IaaS services, except the Model Manager Web Service, before you perform the migration. This includes stopping IaaS DEMs and agents.

About this task

The Model Manager Web Service must remain online during pre-migration and migration. For information about the required order of operations to be performed before you start migration, see Performing Manual Operations After Pre-Migration.


  1. Log in to the host IaaS Windows machine for the vRealize Automation server as a user with full administrative access.
  2. Select Stop > Administrative Tools > Services.
  3. Stop the following VMware services in this order.

    In a distributed environment, stop manager services, DEMs, and agents on all of the running vRealize Automation servers.

    1. VMware vRealize Automation Agents

    2. VMware DEM-Worker

    3. VMware DEM-Orchestrator

    4. VMware vRealize Automation Service (manager service)


Services are stopped on the target vRealize Automation system, except for the Model Manager Web Service, in preparation for migration.