If you upgrade to vCenter Server 5.0 and you want the vCenter Server system to manage version 3.5 ESX or ESXi hosts, verify that the license server is running and that vCenter Server 5.0 is configured to access the license server.

To configure vCenter Server to access a license server, see the vCenter Server and Host Management documentation.

License Server Upgrade Scenarios

Upgrade Scenario

Action Required

Upgrade from VirtualCenter 2.x to vCenter Server 5.0. License server is on the same machine.

None

Upgrade from VirtualCenter 2.x to vCenter Server 5.0. License server is on a different machine.

None

Uninstall VirtualCenter 2.x. Preserve the license server. Perform a clean installation of vCenter Server 5.0 with a rebuilt, clean database.

Configure vCenter Server to access the existing license server.

Uninstall VirtualCenter 2.x and the license server. Perform a clean installation of vCenter Server 5.0 with a rebuilt, clean database.

Install a new license server, and configure vCenter Server to access the new license server.

Clean installation of vCenter Server 5.0 with a rebuilt, clean database. License server is on a different machine.

Configure vCenter Server to access the existing license server.

Upgrade to vCenter Server 5.0 using a different machine. The VirtualCenter 2.x system is the source machine. The vCenter Server 5.0 system is the destination machine.

See Upgrade to vCenter Server on a Different Machine and Upgrade the Database.

Configure vCenter Server to access the existing license server.