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Installing
These topics describe how to install HCL Informix® database servers, client products, and DataBlade® modules.
Informix® server
These topics describe how to install HCL Informix® database servers.
Installing Informix®
The Informix® Installation Guide describes how to install, configure, and initialize the HCL Informix database server.
Creating a database server after installation
You create a database server by setting mandatory database server properties and then starting the database server.

Installing
These topics describe how to install HCL Informix® database servers, client products, and DataBlade® modules.
- Informix® server
  These topics describe how to install HCL Informix® database servers.
  - Installing Informix®
    The Informix® Installation Guide describes how to install, configure, and initialize the HCL Informix database server.
    - Preparing for installation
      Before you install Informix® database server products, you must prepare your system and plan for choices that you must make during the installation process.
    - Running an interactive installation
      You can install the Informix® database server by running the interactive installation application. You can choose a typical or a custom setup.
    - Running non-interactive installations
      You can run non-interactive installations after you first run an interactive installation during which you create an installation template.
    - Installation command syntax
      You can include options to the installation command when you run the command from the command line.
    - Installation troubleshooting
      Installation log files and return codes can provide helpful information about a completed installation or help you identify problems encountered during an installation attempt.
    - Creating a database server after installation
      You create a database server by setting mandatory database server properties and then starting the database server.
      - Setting configuration parameters
        You set configuration parameters that control database server behavior in the onconfig file. The onconfig file is a text file that you create based on a template file. The onconfig file contains many configuration parameters, but most have default values and can be set while the database server is running.
      - Preparing connectivity files
        Prepare the files that the database server uses to communicate with client applications and with other database servers.
      - Setting environment variables
        Set environment variables after you install the database server. If you created a database server during installation, all mandatory environment variables are set, however, you can set optional environment variables.
    - Stopping and starting the database server
      Various configuration tasks require you to stop and then start the database server. Shared memory is initialized every time that the database server starts.
    - Microsoft failover clustering support (Windows)
      HCL Informix® database server supports Microsoft™ Failover Cluster (known as Microsoft Cluster Server, or MSCS, in earlier Windows™ releases). That built-in feature of the Windows operating system can automatically detect and respond to server or application failure, and can balance server workloads.
    - Multiresidency
      Multiple residency refers to multiple database servers and their associated shared memory and disk structures that coexist on a single computer.
    - Removing or modifying Informix® installations
      You can remove Informix® products.
- Client products
  These topics describe how to install HCL Informix® client products.
- DataBlade modules
  These topics describe how to install HCL Informix® DataBlade® modules.
- Informix® warehouse accelerator
  These topics describe how to install HCL Informix® warehouse accelerator.

Creating a database server after installation

You create a database server by setting mandatory database server properties and then starting the database server.

Procedure

To create a database server:

Configure the mandatory properties of the database server.
1. Set configuration parameters in the onconfig file.
2. Add connectivity information in the sqlhosts file and other connectivity files.
3. Set environment variables in your environment.
Tip: On Windows operating systems, you can use the Server Instance Manager to configure the mandatory properties of the database server instead of editing the onconfig and sqlhosts file and setting environment variables.
Optional: Configure the wire listener for MongoDB API and REST API support.
Initialize disk space for the database server when you start the database server for the first time. Disk space initialization creates the initial chunk of the root dbspace, which stores control and tracking information.

Attention: Do not initialize the disk space if you are upgrading from a previous version of the database server and you are using the same root dbspace. Initializing disk space deletes all existing user data and tracking information in the root dbspace.
- UNIX™, Linux™, Mac OS X: Run the oninit -i command.
- Windows™: In the database server properties dialog box from the Services application, add -i in the Start Parameters field and click Start.

Results

The database server is started with disk space initialized.

Windows: A program group for the server is created from which you can open a command prompt for the database server, start the Server Instance Manager, uninstall the database server, or view documentation.

After you start the database server, you can set optional configuration parameters, environment variables, and connectivity settings.