How to check connectivity of OCFS2 nodes?

Hi,
I was trying to setup OCFS2 over ISCSI on OVM server 2.3. By a mistake I didn't setup iptable of one node correctly, however, "service o2cb status" reported everything well on each node.
I was wondering if there are any tools can detect such issue? I finally found this issue by checking iptable rules before that mount worked except changes I made on one node was not visible to another. I went through various OCFS2 documents, no luck. thanks.

Frank wrote:
I was trying to setup OCFS2 over ISCSI on OVM server 2.3. By a mistake I didn't setup iptable of one node correctly, however, "service o2cb status" reported everything well on each node. There is no OVM 2.3. The latest is 2.2.2. Also, iptables is configured properly on installation for ocfs2, so I'm assuming you're changing the default iptables rules?
I was wondering if there are any tools can detect such issue? I finally found this issue by checking iptable rules before that mount worked except changes I made on one node was not visible to another. I went through various OCFS2 documents, no luck. thanks.o2cb is the cluster heartbeat tool, not the cluster filesystem itself. Oracle VM is designed to self-configure the cluster as servers join/leave the pool, so changing the iptables rules is not recommended.

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