Novell LINUX ENTERPRISE SERVER 10 - INSTALLATION AND ADMINISTRATION 04-08-2006 Installation Manual page 282

5 After specifying a heartbeat medium, click Add to add that medium type to
6 On the STONITH Configuration screen, enter or select the name of the node in
7 On the Start-up Configuration screen, choose whether you want to start the
282 Installation and Administration
Heartbeat.
the Host from field, choose the STONITH T ype, specify any necessary parame-
ters, then click Add. Repeat this process for each desired node.
To protect shared data, STONITH must be configured. Heartbeat is capable of
controlling a number of serial and network power switches, and can prevent a
potentially faulty node from corrupting shared data by cutting the power to that
node.
The node names you specify in the Host from field are the nodes that can access
the network power switch. For a serial power switch, this is a specific node name.
For a network power switch you should typically type an asterisk * to indicate
that it is accessible from all nodes.
The STONITH Type is the name of the module that is used to control the power
switch. Parameters are specific to the module specified. See the stonith -h
command line tool for a list of supported modules and the parameters they accept.
Heartbeat software on this cluster server each time it is booted.
If you select Off, you must start Heartbeat manually each time this cluster server
is booted. You can start the heartbeat server manually using the
/etc/init.d/heartbeat start command.
To start the Heartbeat server immediately, click Start Heartbeat Server Now.
To start Heartbeat on the other servers in the cluster when they are booted, enter
chkconfig heartbeat on at the server console of each of those servers.
You can also enter chkconfig heartbeat off at the server console to
have Heartbeat not start automatically when the server is rebooted.