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

Managing a Cluster

Heartbeat ships with a comprehensive set of tools that assist you in managing your
cluster from the command line. This chapter introduces the tools needed for managing
the cluster configuration in the CIB and the cluster resources. Other command line tools
for managing resource agents or tools used for debugging and troubleshooting your
setup are covered in Chapter 7, Creating Resources
bleshooting (page 107).
The following list presents several tasks related to cluster management and briefly in-
troduces the tools to use to accomplish these tasks:
Monitoring the Cluster's Status
The crm_mon command allows you to monitor your cluster's status and configu-
ration. Its output includes the number of nodes, uname, uuid, status, the resources
configured in your cluster, and the current status of each. The output of crm_mon
can be displayed at the console or printed into an HTML file. When provided with
a cluster configuration file without the status section, crm_mon creates an overview
of nodes and resources as specified in the file. See
detailed introduction to this tool's usage and command syntax.
Managing the CIB
The cibadmin command is the low-level administrative command for manipulat-
ing the Heartbeat CIB. It can be used to dump all or part of the CIB, update all or
part of it, modify all or part of it, delete the entire CIB, or perform miscellaneous
CIB administrative operations. See
to this tool's usage and command syntax.
(page 103) and
crm_mon(8)
cibadmin(8) (page 64) for a detailed introduction
Chapter 8, Trou-
(page 86) for a
Managing a Cluster
6
61