Lenovo ThinkSystem SR630 V3 User Manual page 424

Figure 349. Cable routing for six front SAS/SATA drives and four front AnyBay drives bays with a 16i SFF RAID adapter
(Gen 4)
Table 156. Mapping between one front AnyBay backplane and an SFF RAID adapter
Backplane
Front BP (SAS)
Front BP (power)
Front BP (SAS)
Front BP (NVMe)
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From
SAS 0–3, 4–7
1
Power and sideband
2
SAS 8–9
3
NVMe 6–7
4
NVMe 8–9
5
To
C0
1
Power port for front BP
2
C1
3
PCIe 2
4
PCIe 1
5