Lenovo ThinkSystem SR630 V3 User Manual page 334

Figure 278. Cable routing for 8 x 2.5-inch front SAS/SATA drive bays with an 8i SFF RAID adapter (Gen 4) with 2 x 2.5
SAS/SATA rear drives installed
Table 78. Mapping between one front and one rear SAS/SATA backplanes and an SFF HBA/RAID adapter
Backplane
Front BP (SAS)
Rear BP (SAS)
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From
SAS 0, SAS 1
1
SAS
2
To
C0
1
SATA 2
2