fence_pcmk
agent (supplied with Pacemaker) to redirect any fencing requests from CMAN components (such as dlm_controld) to Pacemaker. Pacemaker's fencing subsystem lets other parts of the stack know that a node has been successfully fenced, thus avoiding the need for it to be fenced again when other subsystems notice the node is gone.
fencedevices
section and contain:
<fencedevice name="pcmk" agent="fence_pcmk"/>Each
clusternode
must be configured to use this “device” by adding a fence method
block that lists the node's name
as the port
.
<fence> <method name="pcmk-redirect"> <device name="pcmk" port="node_name_here"/> </method> </fence>
<?xml version="1.0"?> <cluster config_version="1" name="mycluster"> <logging debug="off"/> <clusternodes> <clusternode name="pcmk-1" nodeid="1"> <fence> <method name="pcmk-redirect"> <device name="pcmk" port="pcmk-1"/> </method> </fence> </clusternode> <clusternode name="pcmk-2" nodeid="2"> <fence> <method name="pcmk-redirect"> <device name="pcmk" port="pcmk-2"/> </method> </fence> </clusternode> </clusternodes> <fencedevices> <fencedevice name="pcmk" agent="fence_pcmk"/> </fencedevices> </cluster>