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4
•
X SAS/SATA+Y UniBay drive backplanes
—Support SAS/SATA drives in all slots and support
NVMe drives in certain slots.
−
X
: Number of slots supporting only SAS/SATA drives.
−
Y
: Number of slots supporting both SAS/SATA and NVMe drives.
For UniBay drive backplanes and X SAS/SATA+Y UniBay drive backplanes:
•
The two drive types are supported only when both SAS/SATA and NVMe data cables are
connected.
•
The number of supported SAS/SATA drives and and the number of supported NVMe drives
vary by cable connection.
Front 24LFF drive backplane (18SAS/SATA+6UniBay)
The BP-24LFF-R4300-G3 24LFF drive backplane can be installed at the server front to support 24 ×
3.5-inch SAS/SATA drives. With an integrated Expander chip, the drive backplane can provide six
downstream connectors besides the two x8 Mini-SAS-HD upstream connectors available for two
storage controllers. These downstream connectors can be used to connect other drive backplanes to
support more drives.
Figure 16 24LFF drive backplane
Table 15 24LFF SAS/SATA drive backplane components
Item
Specification
1
SlimSAS connector 1 (x8 PCIe4.0) (NVMe PORT 1)
2
SlimSAS connector 2 (x8 PCIe4.0) (NVMe PORT 2)
3
SlimSAS connector 3 (x8 PCIe4.0) (NVMe PORT 3)
4
AUX connector 2 (AUX2)
5
x4 Mini-SAS-HD upstream connector 3 (SAS-PORT 3)
6
x4 Mini-SAS-HD upstream connector 4 (SAS-PORT 4)
7
AUX connector 1 (AUX1)
8
Power connector 1 (PWR1)
9
Power connector 2 (PWR2)
10
AUX connector 3 (AUX3)