The VMware vCenter
Server 6.0 release introduces new, simplified deployment models. The components that make up a vCenter Server installation have been grouped into two types: embedded and external.
Embedded refers to a deployment in which all components—this can but does not necessarily include the database—are installed on the same virtual machine. External refers to a deployment in which vCenter Server is installed on one virtual machine and the Platform Services Controller (PSC) is installed on another.
The Platform Services Controller is new to vCenter Server 6.0 and comprises VMware vCenter Single Sign-On, licensing, and the VMware Certificate Authority (VMCA). Embedded installations are recommended for standalone environments in which there is only one vCenter Server system and replication to another Platform Services Controller is not required.
If there is a need to replicate with other Platform Services Controllers or there is more than one vCenter Single Sign-On enabled solution, deploying the Platform Services Controller(s) on separate virtual machine(s)—via external deployment—from vCenter Server is required.
defines the services installed as part of each deployment model, recommended deployment models (reference architectures), installation and upgrade instructions for each reference architecture, post deployment steps, and certificate management in VMware vSphere 6.0.