Chapter 3 Connect the Back End78 Storage Center SC8000 Controller Deployment GuideDual Controller, Single SC280 EnclosureThis illustration shows two SC8000 controllers cabled to one SC280 enclosure in a singlechain.Figure 75. Dual SC8000 Controllers, One SC280 Enclosure, One ChainNote: In a single‐chain configuration, use SAS ports 2 (initiator) and 4 (target) tocreate a redundant IPC connection. When you configure these ports using the IOport wizard, set the port Purpose to Unknown.Path ConnectionsIPC 1 Controller A: slot 3, port 2 → Controller B: slot 3, port 4.2 Controller B: slot 3, port 2 → Controller A: slot 3, port 4.Chain 1: A Side 1 Controller A: slot 3, port 1 → Enclosure: left EMM, port C.2 Enclosure: left EMM, port B → Controller B: slot 3, port 3.Chain 1: B Side 1 Controller B: slot 3, port 1 → Enclosure: right EMM, port C.2 Enclosure: right EMM, port B → Controller A: slot 3, port 3.EnclosureController AController BA B1 3 42C A B C1 3 42 4 3 2 14 3 2 1
