Lenovo System x3850 X6 Installation And Service Manual page 85

NVMe backplane configuration
Use this information for an overview of the supported NVMe backplane configuration.
Attention: To help ensure proper system cooling and system reliability, make sure that the following
requirements are met:
• Install a backplane filler in the bottom backplane bay, if no backplane is installed.
• Install individual drive fillers in all unused drive bays.
The following illustration shows the supported NVMe PCIe backplane configuration to support four NVMe
PCIe drives. This configuration consists of one 4x2.5-inch NVMe PCIe drive backplane and requires two
NVMe PCIe controllers and four PCIe signal cables.
• You can install an additional SAS/SATA backplane in the lower backplane bay.
• The drive IDs assigned by IMM2 match the IDs that are indicated on the server front bezel.
• The operating system and uEFI report the hard disk drives attached to the 4x2.5-inch NVMe PCIe Gen3
solid state drive backplane as PCI devices.
7 2.5-inch NVMe PCIe SSD
drive PCIe slot 19
6 2.5-inch NVMe PCIe SSD
drive PCIe slot 18
5 2.5-inch NVMe PCIe SSD
drive PCIe slot 17
4 2.5-inch NVMe PCIe SSD
drive PCIe slot 16
Empty
Backplane configuration for 4 drives
Use this information for an overview of the supported backplane configuration for 4 drives.
The following illustration shows the supported backplane configuration to support four drives. This
configuration consists of one 4x2.5-inch drive backplane and requires one SAS signal cable.
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Chapter 2 Installing optional devices
71