So vSphere 5.5 is out and you should just install it and run! Right!? Wrong!
Always follow best practices and make sure everything is by the book or as close as you can get it.
The insert below is just the beginning, yet its not part of the comprehensive installation guide.
During the first installation of vCenter Server, you must install all components. In subsequent installations in the same environment, or if you add services, you do not have to install SSO. One SSO server can serve your entire vSphere environment. After installing SSO once, you can connect all new vCenter Server instances to the same SSO service. You must install an Inventory Service instance for each vCenter Server instance.
- Simple Install: The Simple Install option installs vCenter Single Sign-On, the vSphere Web Client, vCenter Inventory Service, and vCenter Server on the same host or virtual machine. Simple Install is appropriate for most deployments.
For For guidance on the Simple install, see Methods of Installing vCenter Server 5.5 (2053142).
- Custom Install: If you want to customize the location and setup of each component, you can install the components separately by performing a custom install and selecting the individual installation options in this order:
- vCenter Single Sign-On
- vSphere Web Client
- vCenter Inventory Service
- vCenter Server
You can install each component on a different host or virtual machine.If you decide on installing multiple vCenter Server systems, you can point to the same vCenter Single Sign-On service for each vCenter Server.
For more information
Go here to read the rest, but make sure to read the full installation guide or you might find yourself in trouble!