One 8 x SAS/SATA and two 8 x NVMe backplanes
This section provides cable routing information for the server model with one 8 x SAS/SATA front drive backplane and two 8 x NVMe front drive backplanes.
8i/16i RAID/HBA adapter + retimer card
The following shows the signal cable connections for the 8 x 2.5-inch SAS/SATA + 16 x 2.5-inch NVMe configuration with one 8i/16i RAID/HBA adapter and one retimer card.
To connect power cables for the front backplane(s), refer to Backplanes: server models with 2.5-inch drive backplanes.
| From | To |
|---|---|
Backplane 1: SAS | 8i/16i* RAID/HBA adapter on PCIe slot 5:
|
Backplane 2: NVMe 0-1, 2-3 | Onboard: PCIe 1, PCIe 2 |
Backplane 2: NVMe 4-5, 6-7 | Retimer card on PCIe slot 1: C0, C1 |
Backplane 3: NVMe 0-1, 2-3 | Onboard: PCIe 3, PCIe 4 |
Backplane 3: NVMe 4-5, 6-7 | Onboard: PCIe 5, PCIe 6 |
*If a 16i RAID adapter is used, SAS cable 1 has an extra dummy connector (not shown in below illustration) to connect to the other connector of the 16i RAID adapter.
Connections between connectors: 1 ↔ 1, 2 ↔ 2, 3 ↔ 3, ... n ↔ n
Figure 1. SAS/SATA cable routing  | Figure 2. NVMe cable routing  |