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4.4. Creating a Fencing Device
The following command creates a stonith device.
pcs stonith create stonith_id stonith_device_type [stonith_device_options]
pcs stonith create stonith_id stonith_device_type [stonith_device_options]
pcs stonith create MyStonith fence_virt pcmk_host_list=f1 op monitor interval=30s
# pcs stonith create MyStonith fence_virt pcmk_host_list=f1 op monitor interval=30s
If you use a single fence device for several nodes, using a different port of each node, you do not need to create a device separately for each node. Instead you can use the
pcmk_host_map option to define which port goes to which node. For example, the following command creates a single fencing device called myapc-west-13 that uses an APC powerswitch called west-apc and uses port 15 for node west-13.
pcs stonith create myapc-west-13 fence_apc pcmk_host_list="west-13" ipaddr="west-apc" login="apc" passwd="apc" port="15"
# pcs stonith create myapc-west-13 fence_apc pcmk_host_list="west-13" ipaddr="west-apc" login="apc" passwd="apc" port="15"
The following example, however, uses the APC powerswitch named
west-apc to fence nodes west-13 using port 15, west-14 using port 17, west-15 using port 18, and west-16 using port 19.
pcs stonith create myapc fence_apc pcmk_host_list="west-13,west-14,west-15,west-16" pcmk_host_map="west-13:15;west-14:17;west-15:18;west-16:19" ipaddr="west-apc" login="apc" passwd="apc"
# pcs stonith create myapc fence_apc pcmk_host_list="west-13,west-14,west-15,west-16" pcmk_host_map="west-13:15;west-14:17;west-15:18;west-16:19" ipaddr="west-apc" login="apc" passwd="apc" 
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