Figure 24: Backup battery unit numbering, controller node enclosure front view
Controller node information
The controller nodes (node) are a components of the storage system and are installed in the controller
node enclosure. The controller node caches and manages data in a system and provides the hosts with a
coherent, virtualized view of the system. The controller nodes are located in the rear of the controller
node enclosure.
The storage system provides four controller node compartments (8U) and supports two or four controller
nodes.
The controller nodes are installed in the rear of the controller node enclosure. The numbering sequence
of the controller nodes begins with zero (0) and increments in ascending order from bottom to top.
Figure 25: Controller node numbering, controller node enclosure rear view
Table 4: Controller node loading order
Storage system Number of controller nodes Loading order
HPE 3PAR StoreServ
9450 Storage
2 0, 1
4 0, 1, 2, 3
More information 57
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