Manual Configuration Of A Cluster - Novell SUSE LINUX ENTERPRISE SERVER 10 SP2 HEARTBEAT Manual

Manual Configuration of a
Cluster
Manual configuration of a Heartbeat cluster is often the most effective way of creating
a reliable cluster that meets specific needs. Because of the extensive configurability of
Heartbeat and the range of needs it can meet, it is not possible to document every pos-
sible scenario. To introduce several concepts of the Heartbeat configuration and
demonstrate basic procedures, consider a real world example of an NFS file server. The
goal is to create an NFS server that can be built with very low-cost parts and is as re-
dundant as possible. For this, set up the following cluster:
• Two machines that have redundant hardware
• Data is mirrored on the disks of those machines with drbd
• Only one machine at a time accesses and exports the data
• Assign a special IP address to the computer for exporting the file system
Before starting with the cluster configuration, set up two nodes as described in
Installation and Setup
have a data partition of the same size to setup drbd.
The configuration splits into two main parts. First, all the resources must be configured.
After this, create a set of constraints that define the starting rules for those re-
sources.
All the configuration data is written in XML. For convenience, the example relies on
snippets that may be loaded into the cluster configuration individually.
(page 13). In addition to the system installation, both should
Chapter 2,

Manual Configuration of a Cluster

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