Now, I 'm testing a 3 Nodes with 2 Nodes in DRBD, the third is only for quorum.
I have a working configuration with HP1910 Switch for fencing.
My Cluster conf:
-------------------------------
<?xml version="1.0"?>
<cluster name="TestCluster2" config_version="6">
<cman expected_votes="2" keyfile="/var/lib/pve-cluster/corosync.authkey" two_node="0"/>
<fencedevices>
<fencedevice agent="fence_ifmib" community="private" ipaddr="192.168.1.207" name="hp1910" snmp_version="2c"/>
</fencedevices>
<clusternodes>
<clusternode name="proxmox-1" nodeid="1" votes="1">
<fence>
<method name="fence">
<device action="off" name="hp1910" port="1"/>
</method>
</fence>
</clusternode>
<clusternode name="proxmox-2" nodeid="2" votes="1">
<fence>
<method name="fence">
<device action="off" name="hp1910" port="2"/>
</method>
</fence>
</clusternode>
<clusternode name="proxmox-3" votes="1" nodeid="3"/></clusternodes>
</cluster>
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-- Yena --