Clusters - quorum - fencing - resources

Hi Guys,

I will really appreciate it if some of you will explain me in details how does the following things work (RHEL 6 HA with rgmanager):

1. What exactly is the expected_votes parameter? Should it be in two-node cluster like node1-vote + node2-vote + quorum vote(1) /2 ? (1.5) Why?
2. I noticed that even if I don't have fencing device, the node which has problem is fenced, i.e. one node lost all network connections, when the node is back it is fenced immidiately (see the message below):

Sep 08 11:04:48 fenced receive_start 2:12 add node with started_count 8
Sep 08 11:04:48 fenced fence domain default - membership is disallowed
Sep 08 11:04:48 fenced kick fence victim 2 from cluster
Sep 08 11:04:48 fenced telling cman to remove nodeid 2 from cluster

3. I also notice that resource is not relocating during one node failure. I.e. I have two node cluster in VirtualBox. When I poweroff one node which had the resources running, the other node still sees that the powered off node has the resource and thus the resources are not relocating. What is the issue?