Verify that all components of your environment are ready to upgrade vCenter Server.

Your pre-upgrade configuration of vCenter Server services impacts your post-upgrade deployment of vCenter Server services.

If you have vCenter Server 5.0, you can choose to configure either an embedded or an external Platform Services Controller instance during the upgrade. See Upgrade vCenter Server 5.0.

If you have vCenter Server 5.1 or 5.5, you do not have a choice of deployment options during upgrade. See Upgrade vCenter Server 5.1 for Windows or Upgrade vCenter Server 5.5 for Windows.

If your vCenter Server 5.1 or 5.5 services are deployed on the same virtual machine or physical server, the installer upgrades them to vCenter Server 6.0 with an embedded Platform Services Controller instance.

If your vCenter Single Sign-On 5.1 or 5.5 service is deployed on a different virtual machine or physical server than vCenter Server, the installer upgrades the deployment to vCenter Server 6.0 with an external Platform Services Controller instance. For information on the consolidation of distributed services during the upgrade, see Migration of Distributed vCenter Server for Windows Services During Upgrade to vCenter Server 6.0 and vCenter Server Example Upgrade Paths.

Note

You cannot change deployment of vCenter Server services after the upgrade.

For information about upgrading services, see About the vCenter Server 6.0 for Windows Upgrade Process. For information about upgrading an externally deployed vCenter Single Sign-On server, see Upgrade vCenter Single Sign-On 5.5 for External Deployment.

For information on synchronizing clocks, see Synchronizing Clocks on the vSphere Network.

To download the installer, see Download the vCenter Server for Windows Installer

After you have verified basic compatibility and upgrade readiness for your database, network, local database communication, and ESXi hosts, you are ready to perform the final tasks to assure upgrade readiness of your environment.

1

Log in as a member of the Administrators group on the host machine, with a user name that does not contain non-ASCII characters.

2

Make sure that your pre-upgrade configuration is correct for the post-upgrade deployment you want to achieve.

For vCenter Server 5.1 or 5.5, to upgrade to an embedded Platform Services Controller deployment, make sure that your vCenter Server and vCenter Single Sign-On instances are deployed on a single virtual machine or physical host.

For vCenter Server 5.1 or 5.5, to upgrade to an external Platform Services Controller deployment, make sure that your vCenter Single Sign-On is deployed on a separate virtual machine or physical host from its associated vCenter Server.

For vCenter Server 5.0, to upgrade to an embedded Platform Services Controller deployment, no pre-upgrade steps are required.

For vCenter Server 5.0, to upgrade to an external Platform Services Controller deployment, you must configure an external Platform Services Controller instance before upgrading vCenter Server. The Platform Services Controller information is used during the upgrade to register the external Platform Services Controller with vCenter Server.

3

Verify that the required services have started.

The vCenter Single Sign-On instance to which you are registering vCenter Server

VMware Certificate Authority

VMware Directory Service

VMware Identity Manager Service

VMware KDC Service

tcruntime-C-ProgramData-VMware-cis-runtime-VMwareSTSService

4

Before you install or upgrade a vSphere product, synchronize the clocks of all machines on the vSphere network.

5

If you do not intend to use vCenter Server 6.0 in evaluation mode, make sure that you have valid license keys for all purchased functionality. License keys from previous versions of vSphere continue to support the previous versions, however they do not support vCenter Server 6.0.

If you do not have the license key, you can install in evaluation mode and use the vSphere Web Client to enter the license key later.

6

Close all instances of the vSphere Web Client.

7

Make sure that no processes conflict.

8

Download the installer.

Your environment is ready for the upgrade of your vCenter Server.