Because the server type cannot be changed once it has been installed,
read these topics before installing the product.
Modes of operation
IBM® Rational Change supports two modes of operation: stand-alone and central.
Central mode server types
There are two complementary server types in the central mode: central and remote. Within a central server cluster, there is always a single central server and zero or more remote servers. Each server, regardless of its type, can host multiple databases.
Server type selection
The server type (stand-alone, central, or remote) is designated at the time of installation and cannot be changed thereafter.
Considerations for upgrading from a stand-alone server to a central server
To upgrade from a stand-alone server to a central server, you must select a central CR database. Then, you must migrate all existing CRs into the central CR database. A central server offers many benefits. However, sometimes it is not the correct choice for all users. Read this entire section so that you understand all of the caveats before upgrading to a central server. When you have upgraded, you cannot revert to a stand-alone server.
Change request process selection
When you deploy IBM Rational Change, you must decide which change request (CR) process to install and use.