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 18. 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.
Understanding vSphere Domains, Domain Names, and
Sites
Each Platform Services Controller is associated with a vCenter Single Sign-On domain. The domain
name defaults to vsphere.local, but you can change it during installation of the first
Platform Services Controller. The domain determines the local authentication space. You can split a
domain into multiple sites, and assign each Platform Services Controller and vCenter Server instance to a
site. Sites are logical constructs, but usually correspond to geographic location.
Platform Services Controller Domain
When you install a Platform Services Controller, you are prompted to create a vCenter Single Sign-On
domain or join an existing domain.
Platform Services Controller Administration
VMware, Inc. 14