Managing HP Serviceguard for Linux, Tenth Edition, September 2012

3 Understanding Serviceguard Software Components
This chapter gives a broad overview of how the Serviceguard software components work.
It includes the following topics:
• Serviceguard Architecture
• How the Cluster Manager Works (page 37)
• How the Package Manager Works (page 44)
• How Packages Run (page 58)
• How the Network Manager Works (page 68)
• Volume Managers for Data Storage (page 81)
• Responses to Failures (page 86)
If you are ready to start setting up Serviceguard clusters, skip ahead to Chapter 4,
“Planning and Documenting an HA Cluster.”
Serviceguard Architecture
The following figure shows the main software components used by Serviceguard for
Linux. This chapter discusses these components in some detail.
32 Understanding Serviceguard Software Components