6.7

Table Of Contents
Upgrade or Migration Order and Mixed-Version Transitional
Behavior for Multiple vCenter Server Instance Deployments
When you upgrade or migrate a deployment with multiple vCenter Server instances, the upgrade or
migration order matters.
You upgrade or migrate externally deployedPlatform Services Controller 6.0 and 6.5 instances first. You
temporarily leave the vCenter Server instances at version 6.0 or version 6.5 while you complete the
upgrade or migration process for thePlatform Services Controller 6.0 or 6.5 instances.
n
You must upgrade or migrate your Platform Services Controller 6.0 or 6.5 instances sequentially.
n
For a mixed-platform installation with Platform Services Controller 6.0 or 6.5 instances on Windows
and vCenter Server Appliance instances, upgrade or migrate all the Platform Services Controller 6.0
or 6.5 instances on Windows before upgrading any vCenter Server Appliance instances.
n
For a mixed-platform installation with Platform Services Controller 6.0 or 6.5 appliances and
vCenter Server instances on Windows, upgrade all Platform Services Controller 6.0 or 6.5 appliances
before upgrading or migrating any vCenter Server instances on Windows.
n
After upgrading or migrating your Platform Services Controller 6.0 or 6.5 instances, you can upgrade
vCenter Server instances. vCenter Server instances that point to the same
Platform Services Controller can be upgraded or migrated concurrently.
When you upgrade an externally deployed Platform Services Controller 6.0 instance to an externally
deployed Platform Services Controller 6.7 instance, the legacy vCenter Server instances that were using
the component are not affected. The legacy vCenter Server instances continue to operate with the
upgraded Platform Services Controller just as they operated before the upgrade without any problems or
required reconfiguration. Legacy vCenter Server instances continue to be visible to the legacy
vSphere Web Client, though vCenter Server 6.7 instances are not visible to the legacy
vSphere Web Clients.
Transitional behavior during a migration from a vCenter Server deployment on Windows to an appliance
deployment is the same as for a vCenter Server upgrade on Windows.
Mixed-version transitional behavior is the same for vCenter Single Sign-On instances deployed in
vCenter Server vCenter Server Appliance environments.
vCenter Server Upgrade
VMware, Inc. 14