Connect SC200/SC220 EnclosuresDell Compellent 73Dual Controllers, Four Enclosures, Two ChainsThis illustration shows two SC8000 controllers cabled to two SAS enclosures. Eachenclosure is on a separate chain. When two chains are used, IPC is optional.Figure 71. Dual SC8000 Controllers, Four Enclosures, Two ChainsPath ConnectionsChain 1: A Side 1 Controller A: slot 6, port 1 → Enclosure 1: top EMM, port A.2 Enclosure 1: top EMM, port B → Enclosure 2: top EMM, port A.3 Enclosure 2: top EMM, port B → Controller B: slot 6, port 3.Chain 1: B Side 1 Controller B: slot 5, port 1 → Enclosure 1: bottom EMM, port A.2 Enclosure 1: bottom EMM, port B → Enclosure 2: bottom EMM, port A.3 Enclosure 2: bottom EMM, port B → Controller A: slot 5, port 3.Chain 2: A Side 1 Controller A: slot 6, port 3 → Enclosure 3: top EMM, port A.2 Enclosure 3: top EMM, port B → Enclosure 4: top EMM, port A.3 Enclosure 4: top EMM, port B → Controller B: slot 6, port 1.Controller AController BEnclosure 1Enclosure 2Enclosure 3Enclosure 44 3 2 14 3 2 14 3 2 14 3 2 1A BA BA BA BA BA BA BA B