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Embedding Informix®
When you embed HCL Informix®, you can use enterprise-class high-availability and high performance with embeddability features such as easy programmability, a small disk and memory footprint, and silent deployment.
Embedding HCL Informix®
The Informix® Embeddability Guide describes how to embed HCL Informix in your applications.
Overview of embedding Informix® products
You can embed Informix® products in your applications by taking advantage of customizable deployment options and configurable administration features. You can use the embeddability features in combination with other product features for installation footprint reduction and high-availability clustering to achieve a quicker and easier end-to-end deployment solution.
Synchronize connectivity information between servers and clients on Windows™
On the Windows™ operating system, you must configure connectivity information for Informix® Servers by using the sqlhosts file.

Embedding Informix®
When you embed HCL Informix®, you can use enterprise-class high-availability and high performance with embeddability features such as easy programmability, a small disk and memory footprint, and silent deployment.
- Embedding HCL Informix®
  The Informix® Embeddability Guide describes how to embed HCL Informix in your applications.
  - Overview of embedding Informix® products
    You can embed Informix® products in your applications by taking advantage of customizable deployment options and configurable administration features. You can use the embeddability features in combination with other product features for installation footprint reduction and high-availability clustering to achieve a quicker and easier end-to-end deployment solution.
    - Customize the size of Informix®
      If your application runs in a low-memory environment, you might need to minimize the size of HCL Informix®.
    - Customize a silent installation
      You can create a silent installation script, customized for your requirements, that you can use multiple times.
    - Easy deployment
      You can use the deployment tools to quickly and easily deploy Informix® to multiple locations.
    - Synchronize connectivity information between servers and clients on Windows™
      On the Windows™ operating system, you must configure connectivity information for Informix® Servers by using the sqlhosts file.
    - Automated administration
      You can automate database server administration to minimize or eliminate the need for a database administrator after deployment of the database server instance as an embedded solution.
    - Easy configuration in embedded environments
      You can configure and tune the database server in embedded environments, regardless of the workload or information you have about resources.
    - Specify the Informix® environment in the onconfig file
      You can set local environment variables in the onconfig file for the Informix® instance. These settings, which are independent of the global or system environment variable settings on the computer, can be used by the oninit, oncheck, onclean, onload and onunload, onlog, onmode, onparams, onspaces, onstat, and ontape utilities in embedded environments.
    - Maintain Informix® availability
      You can ensure that your applications can always access HCL Informix® even if a single server fails by configuring a high-availability solution.
  - Deploying Informix® software
    The product supports embeddability tools that enable lightweight, faster deployment of the database server and related client programs.
  - Informix® embeddability deployment tutorial
    The purpose of this tutorial is to provide steps and scripts needed for silent end-to-end deployment of HCL Informix® on Linux™ and Windows™ using the deployment assistant and the deployment utility.
  - Manage memory in embedded environments
    You can manage memory in embedded environments by enabling the database server to automatically rotate and delete online message log files, configuring the actions that the server takes to continue processing when memory is critically low, and enabling the server to reserve a specific amount of memory for use when critical rollback activities are needed and the server has limited free memory.

Synchronize connectivity information between servers and clients on Windows™

On the Windows™ operating system, you must configure connectivity information for Informix® Servers by using the sqlhosts file.

The sqlhosts file is installed in %INFORMIXDIR%\etc\sqlhosts.%INFORMIXSERVER%. The sqlhosts file on the Windows™ operating system uses the same format as the sqlhosts file on UNIX™ operating systems. The sync_registry task automatically converts the connection information between the sqlhosts file format and the Windows™ registry format.

When maintaining several client machines, you can update their registries by using the syncsqlhosts utility. For example, if a DRDA® connection is added to a server, all client machines can use this utility to update their registries as well.