Installation guide

The nodes and services displayed in the Cluster Status Tool are determined by the cluster
configuration file (/etc/cluster/cluster.conf). You can use the Cluster St atus T ool to enable,
disable, restart, or relocate a high-availability service.
1.4. Command Line Administration Tools
In addition to Conga and the system -config-cluster Cluster Administration GUI, command line
tools are available for administering the cluster infrastructure and the high-availability service
management components. T he command line tools are used by the Cluster Administration GUI and init
scripts supplied by Red Hat. Table 1.1, “Command Line Tools” summarizes the command line tools.
Table 1.1. Command Line T ools
Command Line
Tool
Used With Purpose
ccs_tool —
Cluster
Configuration
System Tool
Cluster
Infrastructure
ccs_tool is a program for making online updates to the
cluster configuration file. It provides the capability to create
and modify cluster infrastructure components (for example,
creating a cluster, adding and removing a node). For more
information about this tool, refer to the ccs_tool(8) man
page.
cm an_tool —
Cluster
Management T ool
Cluster
Infrastructure
cm an_tool is a program that manages the CMAN cluster
manager. It provides the capability to join a cluster, leave a
cluster, kill a node, or change the expected quorum votes of
a node in a cluster. cman_tool is available with DLM
clusters only. For more information about this tool, refer to
the cman_tool(8) man page.
gulm _tool —
Cluster
Management T ool
Cluster
Infrastructure
gulm _tool is a program used to manage GULM. It
provides an interface to lock_gulmd, the GULM lock
manager. gulm_tool is available with GULM clusters only.
For more information about this tool, refer to the
gulm_tool(8) man page.
fence_tool —
Fence Tool
Cluster
Infrastructure
fence_tool is a program used to join or leave the default
fence domain. Specifically, it starts the fence daemon
(fenced) to join the domain and kills fenced to leave the
domain. fence_tool is available with DLM clusters only.
For more information about this tool, refer to the
fence_tool(8) man page.
clustat —
Cluster Status
Utility
High-availability
Service
Management
Components
The clustat command displays the status of the cluster. It
shows membership information, quorum view, and the state
of all configured user services. For more information about
this tool, refer to the clustat(8) man page.
clusvcadm —
Cluster User
Service
Administration
Utility
High-availability
Service
Management
Components
The clusvcadm command allows you to enable, disable,
relocate, and restart high-availability services in a cluster.
For more information about this tool, refer to the
clusvcadm(8) man page.
Red Hat Enterprise Linux 4 Cluster Administration
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