Welcome
Installing
These topics describe how to install HCL Informix® database servers, client products, and modules.
Informix® warehouse accelerator
These topics describe how to install HCL Informix® warehouse accelerator.
Installation
You can install on the same computer as the Informix® database server, on a separate computer, or on a cluster (including a high-availability cluster).
prerequisites and requirements
Ensure that your system meets the prerequisites and the requirements for . You must have certain utilities installed. Cluster installations have additional requirements.

HCL Informix® V15.0.0 documentation
Welcome to the documentation for HCL Informix® 15.0.0 and related client tools and products.
Product overview
HCL Informix® is a fast and scalable database server that manages traditional relational, object-relational, and dimensional databases. Its small footprint and self-managing capabilities are suited to embedded data-management solutions.
Installing
These topics describe how to install HCL Informix® database servers, client products, and modules.
- HCL Informix® server
  These topics describe how to install HCL Informix® database servers.
- Client products
  These topics describe how to install HCL Informix® client products.
- DataBlade modules
  These topics describe how to install HCL Informix® modules.
- Informix® warehouse accelerator
  These topics describe how to install HCL Informix® warehouse accelerator.
  - Installation
    You can install on the same computer as the Informix® database server, on a separate computer, or on a cluster (including a high-availability cluster).
    - prerequisites and requirements
      Ensure that your system meets the prerequisites and the requirements for . You must have certain utilities installed. Cluster installations have additional requirements.
    - Informix® Warehouse Accelerator directory structure
      When you install and set up , there are several directories that are needed.
    - Preparing the Informix® database server
      Before you install , configure the database server.
    - Installing
      You can use the graphical mode, console mode, or silent mode to install .
    - Verifying the Informix® database server environment
      You can use the ondwachk script to confirm that the Informix® database server environment is set up correctly for and that the database server can connect to the accelerator server.
    - Uninstalling Informix® Warehouse Accelerator
      If you need to reinstall the or if you no longer want to use , you must uninstall it.
Administering
In addition to administering the database server, you can tune performance, replicate data, and archive data.
Migrating and upgrading
You can upgrade to the 15.0.0 release of HCL Informix® or migrate from other database servers to Informix. Upgrading is an in-place migration method that uses your existing hardware and operating system software. Some changes to the Informix database server can affect upgrading from a previous release.
Client APIs and tools
You can use the HCL Informix® implementation of client APIs to develop applications for Informix database servers.
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.
Extending Informix®
Beyond standard relational database objects, HCL Informix® can be extended to handle specialized data types, access methods, routines, and other objects. Informix includes many built-in extensions that are fully integrated in the database server. Informix also provides modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for Informix.
Data warehousing
In addition to designing and implementing Informix® dimensional databases, you can use tools to create data warehouse applications and optimize your data warehouse queries.
Designing databases
The first step in creating a relational database is to construct a data model, which is a precise, complete definition of the data you want to store. After you prepare your data model, you must implement it as a database and tables. To implement your data model, you first select a data type for each column and then you create a database and tables and populate the tables with data. You can also implement fragmentation strategies and control access to your data.
JSON compatibility
You can use the popular JSON-oriented query language created by MongoDB to interact with data stored in HCL Informix®.
Security
You can secure your Informix® database server and the data that is stored in your Informix databases. You can encrypt data, secure connections, control user privileges and access, and audit data security.
SQL programming
You can use the HCL Informix® implementation of the SQL language to develop applications for Informix database servers.
Troubleshooting HCL Informix®
Several troubleshooting techniques, tools, and resources are available for resolving problems that you encounter in your HCL Informix® database server environment.

prerequisites and requirements

Ensure that your system meets the prerequisites and the requirements for . You must have certain utilities installed. Cluster installations have additional requirements.

General prerequisites

Following are the general prerequisites for :

Only one instance of can be installed on a computer.
Both the Informix® and versions must be at the same release and fix pack level.

System requirements

must be installed on a computer that uses a Linux™ Intel™ x86 64-bit operating system. For the detailed list of supported operating systems and hardware, see the system requirements.

Required libraries

You must have the following libraries installed on the server where is installed:

libicu
xerces-c

Required utilities

You must have the following utilities on the server where is installed:

Telnet client program
Expect utility (expect-5)
su command

Requirements for installed on a cluster system

Following are requirements for installing on a cluster system:

You must have a shared-disk cluster file system. For example, IBM® General Parallel File System (GPFS™).
For maximum performance in a shared cluster environment, all cluster nodes must have the same amount of memory and processor cores.
The user root must be able to connect to all cluster nodes by using the Secure Shell (SSH) network protocol without a password.
If user informix is used for administration, user informix must be able to connect to all cluster nodes by using the Secure Shell (SSH) network protocol without a password.
The file paths for the installation files must be the same on each cluster node.