Front 25Sff 17Sas/Sata+8Unibay Drive Backplane; Rear 8E1.S Drive Backplane - H3C UniServer R6900 G6 Technology White Paper

(1) x8 SlimSAS connector (SAS PORT)
(7) MCIO connector A1/A2 (PCIe5.0 x8)(NVMe A1/A2)
PCIe5.0 x8 description:

PCIe5.0: Fifth-generation signal speed.

x8: Bus bandwidth.

Front 25SFF 17SAS/SATA+8UniBay drive backplane

The PCA-BP-25SFF-2U-G6 25SFF drive backplane can be installed at the server front to support
twenty-five 2.5-inch SAS/SATA/NVMe drives, including 17 SAS/SATA drives and 8 SAS/SATA/NVMe
drives. The drive backplane can use an x8 SlimSAS connector to manage 25 SAS/SATA drives. The
drive backplane also integrates an Expander chip and three downlink interfaces to connect to other
drive backplanes and support more drives.
Figure 18 25SFF drive backplane
(1) x4 SlimSAS downlink interface 3 (SAS EXP 3)
(2) x8 SlimSAS uplink interface (SAS PORT), managing all drives on the backplane
(3) x8 SlimSAS downlink interface 2 (SAS EXP 2)
(5) Power connector 1 (PWR 1)
(7) MCIO connector 4 (PCIe5.0 x8)
(8) AUX connector (AUX)
(9) MCIO connector 3 (PCIe5.0 x8)
(10) MCIO connector 2 (PCIe5.0 x8)
(11) Power connector 3 (PWR 3)
(12) MCIO connector 1 (PCIe5.0 x8)
PCIe5.0 x8 description:

PCIe5.0: Fifth-generation signal speed.

x8: Bus bandwidth.

Rear 8E1.S drive backplane

An 8E1.S drive backplane (model: PCA-BP-8E1S-2U-G6) can be installed at the server rear to
support up to eight E1.S drives with a thickness of 15 mm (0.59 in).
(2) AUX ( AUX)
(4) x4 SlimSAS downlink interface 1 (SAS EXP 1)
(6) Power connector 2 (PWR 2)
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