IBM Power System 5888 Service Information page 42

Figure 35. Two EDR1 PCIe storage enclosures connected to two 8412-EAD, 9117-MMC, 9117-MMD, 9179-MHC, or
9179-MHD systems by using two FC 1914 PCIe2 GX++ adapters and four PCIe cables
Figure 36 on page 31 shows four EDR1 PCIe storage enclosures connected to two 8412-EAD, 9117-MMC,
9117-MMD, 9179-MHC, or 9179-MHD systems by using four FC 1914 PCIe2 GX++ adapters and eight
PCIe cables.
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Power Systems: Service information for the PCIe storage enclosures