In Windows we can configure two types of clusters
1. NLB (network
load balancing) : cluster for balancing load between servers. This cluster will
not provide any high availability. Usually preferable at edge servers like web
or proxy.
2. Server Cluster: This provides High availability by configuring active-active or
active-passive cluster. In 2 node active-passive cluster one node will be
active and one node will be stand by. When active server fails the application
will FAILOVER to stand by server automatically. When the original server backs
we need to FAILBACK the application
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