The first of a new series of step-by-step guides for Pacemaker.

This installment covers installation, the creation of an active/passive cluster and its conversion to active/active.

Technologies used include:

  • Fedora 11 as the host operating system
  • OpenAIS to provide messaging and membership services,
  • Pacemaker to perform resource management,
  • DRBD as a cost-effective alternative to shared storage,
  • OCFS2 as the cluster filesystem (in active/active mode)
  • The crm shell for displaying the configuration and making changes
  • Apache as the example service.

The PDF is available from our Documentation page or directly via [](

Future guides are anticipated to include MySQL, mail servers and asymmetrical clusters. Feedback and suggestions for additional topics are welcome.