HP Serviceguard A.11.20- Managing Serviceguard Twentieth Edition, August 2011

5 Building an HA Cluster Configuration
This chapter and the next take you through the configuration tasks required to set up a Serviceguard
cluster. These procedures are carried out on one node, called the configuration node, and the
resulting binary file is distributed by Serviceguard to all the nodes in the cluster. In the examples
in this chapter, the configuration node is named ftsys9, and the sample target node is called
ftsys10. This chapter describes the following tasks:
• Preparing Your Systems
• Configuring the Cluster (page 186)
• Managing the Running Cluster (page 222)
Configuring packages is described in the next chapter.
Preparing Your Systems
This section describes the tasks that should be done on the prospective cluster nodes before you
actually configure the cluster. It covers the following topics:
• Installing and Updating Serviceguard
• Where Serviceguard Files Are Kept (page 158)
• Creating Cluster-wide Device Special Files (cDSFs) (page 159)
• Using Easy Deployment (page 161)
• Configuring Root-Level Access (page 166)
• Configuring Name Resolution (page 168)
• Ensuring Consistency of Kernel Configuration (page 170)
• Enabling the Network Time Protocol (page 171)
• Tuning Network and Kernel Parameters (page 171)
• Creating Mirrors of Root Logical Volumes (page 172)
• Choosing Cluster Lock Disks (page 173)
• Setting Up a Lock LUN (page 174)
• Setting Up and Running the Quorum Server (page 177)
• Creating the Storage Infrastructure and file systems with LVM, VxVM and CVM (page 177)
Installing and Updating Serviceguard
For information about installing Serviceguard, see the Release Notes for your version at http://
www.hp.com/go/hpux-serviceguard-docs.
For information about installing and updating HP-UX, see the HP-UX Installation and Update Guide
for the version you need: go to http://www.hp.com/go/hpux-core-docs and choose HP-UX 11i
v3.
Appendix D (page 357) provides instructions for upgrading Serviceguard without halting the cluster.
Make sure you read the entire Appendix, and the corresponding section in the Release Notes,
before you begin.
Where Serviceguard Files Are Kept
Serviceguard uses a special file, /etc/cmcluster.conf, to define the locations for configuration
and log files within the HP-UX file system. The following locations are defined in the file:
158 Building an HA Cluster Configuration