Lenovo ThinkSystem SR630 V3 User Manual page 362

Figure 302. Cable routing for onboard configuration of 4 x 3.5-inch front SAS/SATA drive with 2 x 2.5 rear NVMe drives
Table 102. Mapping between one front SAS/SATA backplane with one rear NVMe backplane and processor board for
onboard configuration
Backplane
Front BP (SAS)
1
Rear BP (NVMe)
2
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From
SAS
NVMe 0, NVMe 1
To
SATA 0
PCIe 6