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Drive backplane cabling, see Storage cabling.
Item
Item
Description
Description
1
Drive bay count
2
Drive form factor
3
Maximum link rate per lane (GT/s)
4
Port link width and interface
5
Universal backplane manager (UBM) options
6
Drive carrier type
1
Tri-mode controller support for x1 U.3 NVMe, SAS, and SATA drives. System board connection supports SATA drives only.
2
CPU direct attach or tri-mode controller support for x4 U.3 NVMe or x1 SAS and SATA drives.
3
CPU direct attach or tri-mode controller support for x4 U.2 NVMe drives.
Fan bay numbering
Fan bay numbering
For the fan population rules, see Fan population.
Values
Values
Number of drive bays supported by the backplane.
LFF—Large Form Factor
SFF—Small Form Factor
E3.S—Enterprise and Datacenter Standard Form Factor (EDSFF)
The different versions of supported E3.S drives share the same
height (76 mm, 2.99 in) and length (112.75 mm, 4.44 in). The
difference is in the thickness:
E3.S: 7.5 mm (0.30 in)
E3.S 2T: 16.8 mm (0.66 in)
12G
16G
24G
32G
x1 NVMe/SAS—U.3 NVMe, SAS, or SATA
x4 NVMe/SAS—U.3 NVMe, SAS, or SATA
3
x4 NVMe—U.2 NVMe
x4 NVMe—E3.S
UBM2—Segregated SAS/SATA
UBM3 or UBM6—Converged
UBM4 or UBM6—Segregated U.2 NVMe
UBM5 or UBM7—EDSFF
BC—Basic carrier (SFF)
LP—Low-profile carrier (LFF)
EC1—E3.S carrier
EC2—E3.S 2T carrier
HPE ProLiant ML350 Gen11 Server User Guide
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