Lenovo ThinkSystem SR630 V3 User Manual page 410

Figure 337. Cable routing for 10 front SAS/SATA drives bays and a 16i SFF RAID adapter (Gen 4) with 2 x 2.5 rear SAS/
SATA drives installed
Table 144. Mapping between one front AnyBay 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 (front), SAS (rear)
2
To
C0
1
C1
2