HP 3PAR StoreServ 7450 4-node HP 3PAR StoreServ 7450 Storage Installation Guid - Page 10
Controller Nodes, HP M6720 Drive Enclosure 4U24
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Figure 2 HP M6720 Drive Enclosure (4U24) In the HP 3PAR Management Console or CLI, the enclosures are displayed as follows: DCS2 for the 2U24 (M6710), DCS1 for the 4U24 enclosure (M6720), and DCN1 for the 7450 controller node enclosure. Controller Nodes The controller node is a storage system component that caches and manages data in a system and provides hosts with a coherent, virtualized view of the system. Controller nodes are located in the rear of the node enclosure. The HP 3PAR StoreServ 7450 Storage system can contains two nodes or four nodes: node 0 and node 1 in the lower controller enclosure, and node 2 and node 3 in the upper controller enclosure in a system with four nodes. Figure 3 HP 3PAR StoreServ 7450 Two Controller Nodes Figure 4 HP 3PAR StoreServ 7450 Four Controller Nodes 10 Identifying Storage System Components