Chapter 3 Connect the Back End88 Storage Center SC8000 Controller Deployment GuideDual Controllers, Two Enclosures, Single ChainThis illustration shows two SC8000 controllers cabled to two SAS enclosures forming asingle chain. In a single‐chain configuration, use SAS ports 2 and 4 to create a redundantIPC connection. When you configure these ports using the IO port wizard, set the portPurpose to Unknown.Figure 81. Dual SC8000 Controllers, Two Enclosures, One ChainPath ConnectionsIPC 1 Controller A: slot 6, port 2 → Controller B: slot 6, port 4.2 Controller B: slot 6, port 2 → Controller A: slot 6, port 4.Chain 1: A Side 1 Controller A: slot 6, port 1 → Enclosure 1: top SBB, port C.2 Enclosure 1: top SBB, port B → Enclosure 2: top SBB, port A.3 Enclosure 2: top SBB, port C → Controller B: slot 6, port 3.Chain 1: B Side 1 Controller B: slot 6, port 1 → Enclosure 1: bottom SBB, port C.2 Enclosure 1: bottom SBB, port A → Enclosure 2: bottom SBB, port B.3 Enclosure 2: bottom SBB, port C → Controller A: slot 6, port 3.Enclosure 1Enclosure 2Controller AController B4 3 2 1
