Hardware/Network/OS Requirements for MSCS
In the Windows 2000 server family, creating a basic two-node cluster will increase your high availability instantly. In addition, as has already been pointed out, it is possible to have up to four server nodes within a single cluster (which improves your high availability even further—likeliness of a server failure is now mitigated even more). Each node (server) in the cluster doesn't need to have the exact hardware/software configuration as the others; they just have to have a least common denominator configuration. As an example, each node in a cluster must have at least enough RAM memory as the smallest active server—a 4GB RAM server cannot failover to a server that only has 1GB RAM; however, it is ...
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