distinction: heartbeat, heartbbeat 2, openais

This document (7004602) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Server 10
SUSE Linux Enterprise Server 9


heartbeat is a common name for the High Availability application of Linux.

In SLES9 there is heartbeat, also referred to in later documentation as heartbeat 1. This heartbeat 1 is relatively simple, has no GUI and configuration is done filebased. Documentation on heartbeat 1 can be found at


In SLES10 there is heartbeat 2. This introduces a GUI, CIB and CRM and is a major step from heartbeat 1. There is a conversion tool to update heartbeat 1 clusters to heartbeat 2.

In SLES11 there is openais. Openais is the successor of heartbeat2. It also provides a GUI and CIB but also a new elements to the cluster while still using the Resource Agents from previous versions. heartbeat 2 from SLES10 can be updated directly to SLES11 openais. Documentation on openais can be found in the:
SLES11 SP4 High Availability Guide




This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7004602
  • Creation Date: 06-Oct-2009
  • Modified Date:14-Mar-2021
    • SUSE Linux Enterprise Server

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