How many IP addresses are required for a two-node cluster with one primary LAN, a backup LAN and two applications that are cluster aware?
The answer depends on the clustering software you use, since at least one (VERITAS cluster server) does not require IP addresses for its heartbeat links. And different clustering software may have other requirements or restrictions on IP allocation. But, assuming the maximum number of IPs, you'd need:
That sounds like eight to me. Good luck!
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