Figure 2-8 and Figure 2-9 show up to four cluster nodes connected to two RAID controller modules. Since each cluster node has redundant paths, loss of a single path would still allow access to the storage array through the alternate path.

Figure 2-8. Four Cluster Nodes Connected to Two Controllers

Four cluster nodes

Storage array

Corporate, public, or private network

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Hardware Installation

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Dell MD3200, MD3220 manual Four Cluster Nodes Connected to Two Controllers