IBM GC23-7753-05 - Manual (Page 17)

Installation application setup types
The installation application has two setup options:
Typical installation
Typical setup is recommended for most database server environments, but
the installation requires more disk space and memory than an installation
created using custom setup.
Custom installation
Custom setup lets you select products and features to exclude from the
installation. Some features are mutually dependent, and must be installed
with one another. The installation application enforces these dependencies.
In addition, custom setup lets you select whether to create a database
server instance automatically after installation. If you create an instance in
custom installation, you have the option to set specific configuration
parameters or to let the installation application set them automatically.
You must select custom setup to complete a domain installation or to
enable role separation.
You can run the installation application on Windows in either of the following
modes:
v Graphical user interface (GUI).
v Silent installation. You can perform a silent installation, an installation method
that requires no user interaction with the installation application after you start
it. Silent installation is useful when you plan to install Informix or related
products on multiple computers. You must have a complete response file, which
indicates how you want the installation to be configured, before you can
perform a silent installation.
Which setup type you select depends on your system architecture, your technical
expertise, and the requirements of your implementation.
Silent installation
If you expect to replicate your installation configuration with silent
installation, read “Performing a silent installation of Informix and client
products” on page 2-4 first.
Installing database server to run as local system account
To install the Informix database server as a local system account on
Windows, you must select a custom installation and complete the
administrative user configuration accordingly. With the option to run the
Informix service as local system, the database server is started using the
Windows local system account, instead of user informix.
Related tasks
“Installing with the GUI typical setup” on page 2-1
“Installing with the GUI custom setup” on page 2-2
“Performing a silent installation of Informix and client products” on page 2-4
Plan role separation
Role separation provides increased database security because the database server
splits administrative tasks into mutually exclusive roles.
Chapter 1. Preparing to install Informix and client products (Windows) 1-3