Installation guide

T ab le 1.1. Co mman d Lin e T oo ls
Co mman d Lin e
T o o l
Used Wit h Pu rp o se
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.
cman_tool
—
Cluster
Management Tool
Cluster
Infrastructure
cman_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. For more information about
this tool, refer to the cman_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. 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.
1.10. Linux Virt ual Server Administ rat ion GUI
This section provides an overview of the LVS configuration tool available with Red Hat Cluster Suite
— the Piran h a C on f ig u rat io n T oo l. The Piran ha Co nf ig u rat io n T o o l is a Web-browser
graphical user interface (GUI) that provides a structured approach to creating the configuration file
for LVS — /etc/sysconfig/ha/lvs.cf.
To access the Piran h a Co nf ig u rat io n T oo l you need the piranha-gui service running on the
active LVS router. You can access the Piran ha C o n f ig urat io n T oo l locally or remotely with a Web
browser. You can access it locally with this URL: http://localhost:3636. You can access it
remotely with either the hostname or the real IP address followed by :3636. If you are accessing the
Piran h a Co nf ig u rat io n T oo l remotely, you need an ssh connection to the active LVS router as
the root user.
Starting the Piran h a Co n f ig u rat io n T oo l causes the Piran h a Co n f ig u rat io n T oo l welcome
page to be displayed (refer to Figure 1.26, “ The Welcome Panel” ). Logging in to the welcome page
provides access to the four main screens or panels: CONTROL/MONITORING, GLOBAL SETTINGS,
REDUNDANCY, and VIRTUAL SERVERS. In addition, the VIRTUAL SERVERS panel contains four
subsections. The CONTROL/MONITORING panel is the first panel displayed after you log in at the
welcome screen.
Red Hat Ent erprise Linux 5 Clust er Suit e Overview
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