Installation guide

Chapter 8. Managing Red Hat High Availability Add-On With
Command Line Tools
This chapter describes various administrative tasks for managing Red Hat High Availability Add-On
and consists of the following sections:
Section 8.1, “ Starting and Stopping the Cluster Software”
Section 8.2, “ Deleting or Adding a Node”
Section 8.3, “ Managing High-Availability Services
Section 8.4, “ Updating a Configuration
Important
Make sure that your deployment of Red Hat High Availability Add-On meets your needs and
can be supported. Consult with an authorized Red Hat representative to verify your
configuration prior to deployment. In addition, allow time for a configuration burn-in period to
test failure modes.
Important
This chapter references commonly used cl uster. co nf elements and attributes. For a
comprehensive list and description of cl uster. co nf elements and attributes, refer to the
cluster schema at /usr/share/cl uster/cluster. rng , and the annotated schema at
/usr/share/d o c/cman-X. Y . ZZ/cl uster_co nf. html (for example
/usr/share/d o c/cman-3. 0 . 12/cluster_conf. html ).
Important
Certain procedure in this chapter call for using the cman_to o l versio n -r command to
propagate a cluster configuration throughout a cluster. Using that command requires that
ri cci is running.
Note
Procedures in this chapter, may include specific commands for some of the command-line
tools listed in Appendix E, Command Line Tools Summary. For more information about all
commands and variables, refer to the man page for each command-line tool.
8.1. St art ing and St opping t he Clust er Soft ware
Red Hat Ent erprise Linux 6 Clust er Administ rat ion
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