Lenovo ThinkSystem SR630 V3 User Manual page 296

Figure 253. Cable routing for 6 SAS/SATA drives and 2 AnyBay drives and 2 NVMe front drive bays with an 8i or 16i SFF
RAID adapter (Gen 4)
Table 48. Mapping between one front AnyBay backplane and an SFF HBA/RAID adapter
Backplane
Front BP (SAS)
Front BP (NVMe)
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From
SAS 0, SAS 1
1
NVMe 0–1
2
NVMe 2–3
3
To
C0
1
PCIe 2
2
PCIe 1
3