About This Guide

Updated: May 06, 2022

The High Availability Framework Developer's Guide describes how to build robust high-availability software running on the QNX Neutrino RTOS.

The following table may help you find information quickly in this guide:

If you want to: Go to:
Find the introduction Introduction
Learn about the main components What's in the High Availability Framework?
Understand the benefits of a software-oriented approach to High Availability The QNX Neutrino Approach to HA
Get an overview of the HAM and Guardian “watchdogs” Using the High Availability Manager
Find out which standard QNX Neutrino library functions have HA covers Using the Client Recovery Library
Look up a HAM API function (e.g., ham_attach()) HAM API Reference
Look up a convenience function (e.g., ha_recover()) Client Recovery Library Reference
See sample code listings for handling various HA scenarios The Examples appendix
Look up a special term used in this guide Glossary
Note: For an overview of the QNX Neutrino RTOS, see the System Architecture guide.