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8 x 2.5'' NVMe drives with two 4 x 2.5'' NVMe backplanes (one processor)

Use this section to understand the cable routing for eight NVMe drives with two 4 x 2.5'' NVMe backplanes and one processor installed.

Cable routing for onboard configuration

The following illustrations and tables show the mapping relationship between backplane connectors and processor board connectors for onboard configuration.

The following figure illustrates the cable routing for the onboard configuration of 8 x 2.5-inch front NVMe drive bays. Connections between connectors: 11, 22, 33, ... nn.

Figure 1. Cable routing for onboard configuration of 8 x 2.5 NVMe front drives

Table 1. Mapping between backplane and processor board for onboard configuration
BackplaneFrom backplaneCable silkscreenTo
4 x 2.5'' NVMe backplane 11 NVMe 0–11 NVMe 0–11 PCIe 4
2 Power2 Power2 Power connector 2_A
3 NVMe 2–33 NVMe 2–33 PCIe 3
4 x 2.5'' NVMe backplane 24 NVMe 0–14 NVMe 4–54 PCIe 1
5 Power5 Power5 Power connector 3_A
6 NVMe 2–36 NVMe 6–76 PCIe 2