[Pacemaker] Pacemaker cluster: OpenAis communication channels

[Romain CHANU]

Hi,

I am reading the user's guide for DRBD and there is something I want to
clarify about Pacemaker.

In Chapter 8 ("Integrating DRBD with Pacemaker clusters"), section 8.1.4
"OpenAis communication channels", it is said that "the absolute minimum
requirement for stable cluster operation is two independent communication
channels in a redundant ring"

Does it mean that if I have a Pacemaker cluster composed of two nodes, I
need two NIC on each node?

Thank you.

Romain Chanu
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