The basic goal of the High Availability Linux project is to Provide a high-availability (clustering) solution for Linux which promotes reliability, availability, and serviceability (RAS) through a community development effort.
The Linux-HA project is a widely used and important component in many interesting High-Availability solutions. We estimate that we currently have around thirty thousand installations up in mission-critical uses in the real world since it became suitable for mission critical production in 1999. Interest in this project continues to grow. These web pages are average more than 17000 hits per day, and we see around 100 downloads of our software per day.
Heartbeat now ships as part of SUSE Linux, Mandriva Linux, MSC Linux, Debian GNU/Linux, Ubuntu Linux, Red Flag Linux, and Gentoo Linux. Ultra Monkey, and several company’s embedded systems are also based on it. Although this is called the Linux-HA project, the software is highly portable and runs on FreeBSD and Solaris as well (even MacOS X from time to time).