When you migrate vCenter Server or vCenter Single Sign-On on Windows to an appliance, the installer does a pre-check, for example, to verify that enough space is available on the source machine, and verifies that the external database, if any, can be successfully accessed.

Source Environment Checks

When you migrate vCenter Single Sign-On (version 5.5), the vCenter Single Sign-On is included as part of the Platform Services Controller.

If your vCenter Server service is running in a service user account for access to the vCenter Server database and you run Migration Assistant under a different account, the Migration Assistant account must have the Replace a process level token permission.

The pre-migration checker performs checks for the following aspects of the source environment:

  • Network connections

  • Internal and external port availability

  • Administrator privileges on the Windows machine

  • Any credentials that you enter

  • Supported product and version

  • Administrator privilege for launching Migration Assistant

  • Migration Assistant port availability

  • Export directory space and permission requirements

  • System name validity

  • Inventory size compatibility

  • External vCenter Single Sign-On version

  • vCenter Single Sign-On and vCenter Server certificate compatibility

  • NTP server validity

Target Environment Checks

The pre-migration checker performs checks for the following aspects of the target environment:

  • Network connections

  • Target vCenter Server IP address

  • Minimum processor requirements

  • Minimum memory requirements

  • Minimum disk space requirements

  • Permissions on the selected install and data directory

  • Internal and external port availability

  • Administrator privileges on the target host

  • Any credentials that you enter