Managing HP Serviceguard for Linux, Seventh Edition, July 2007

Planning and Documenting an HA Cluster
Chapter 4 89
4 Planning and Documenting an
HA Cluster
Building a Serviceguard cluster begins with a planning phase in which
you gather and record information about all the hardware and software
components of the configuration.
This chapter assists you in the following planning areas:
• General Planning
• Hardware Planning
• Power Supply Planning
• Cluster Lock Planning
• Volume Manager Planning
• Cluster Configuration Planning
• Package Configuration Planning
Each planning step is illustrated with a sample worksheet. A complete
set of blank worksheets is in Appendix D. As you go through each step,
record all the important details of the configuration. Then use the
information from the planning worksheets to create the cluster; enter the
values into Serviceguard Manager or into the configuration files and
control scripts.
NOTE Planning and installation overlap considerably, so you may not be able to
complete the worksheets before you proceed to the actual configuration.
In cases where the worksheet is incomplete, fill in the missing elements
to document the system as you proceed with the configuration.
Subsequent chapters describe configuration and maintenance tasks in
detail.