6.5.1

Table Of Contents
When you join two or more Platform Services Controller instances in the same site with no load balancer,
you configure Platform Services Controller high availability with a manual failover for this site.
Note If your vCenter Single Sign-On domain includes three or more Platform Services Controller
instances, you can manually create a ring topology. A ring topology ensures Platform Services Controller
reliability when one of the instances fails. To create a ring topology, run the /usr/lib/vmware-
vmdir/bin/vdcrepadmin -f createagreement command against the first and last
Platform Services Controller instance that you have deployed.
Platform Services Controller with No Load Balancer Across
vCenter Single Sign-On Sites
Figure 120. Example of Two Joined Pairs of Platform Services Controller Instances Across
Two Sites with No Load Balancer
vCenter Server
Platform Services
Controller
Virtual Machine or
Physical Server
Virtual Machine or
Physical Server
vCenter Server
Platform Services
Controller
Virtual Machine or
Physical Server
Virtual Machine or
Physical Server
vCenter Server
Platform Services
Controller
Virtual Machine or
Physical Server
Virtual Machine or
Physical Server
vCenter Server
Platform Services
Controller
Virtual Machine or
Physical Server
Virtual Machine or
Physical Server
Site 1 Site 2
Important Repointing vCenter Server between sites and domains is unsupported. If no functional
Platform Services Controller instance is available in the site, you must deploy or install a new
Platform Services Controller instance in this site. This new Platform Services Controller instance becomes
the replication partner of the existing Platform Services Controller instance.
Moving from a Deprecated to a Supported vCenter Server
Deployment Topology Before Upgrade or Migration
Before you upgrade or migrate your environment to vSphere 6.5, you must move any deprecated
deployment topology to a supported deployment topology.
When you first install vCenter Server 5.5 or 6.0, you deployment includes either an embedded
Platform Services Controller or vCenter Single Single-On, or an external Platform Services Controller or
vCenter Single Single-On.
If you upgrade or migrate your deployment later you have two options:
n
Join a vCenter Server with an external Platform Services Controller to a Platform Services Controller.
n
Join an external Platform Services Controller to a Platform Services Controller.
vSphere Upgrade
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