Lenovo ThinkSystem SR630 V3 - Page 332

Figure 276. Cable routing for 8 x 2.5-inch front SAS/SATA drive bays with an 8i or 16i SFF RAID adapter (Gen 4)
Table 76. Mapping between one front SAS/SATA backplane and an SFF HBA/RAID adapter
Backplane From To
Front BP (SAS)
1 SAS 0, SAS 1 1 C0
322 ThinkSystem SR630 V3 User Guide