Reference Guide

13 NVMe and I/O Topologies for Dell EMC PowerEdge Servers
2.5 PowerEdge R940
Populated with twelve NVMe drives on 2S
Figure 9: PowerEdge R940 CPU mapping with twelve NVMe drives on 2S CPU 1&2 Mapping
2S or 4S 3U NVMe Configuration
This 3U PowerEdge R940 configuration supports twelve NVMe drives and twelve
SATA/SAS drives. The NVMe drives are connected directly to CPU1 and CPU2 through
I/O slots and the SATA/SAS drives are connected to the MB PERC. This configuration
must be used for an R940 populated w/ 2 sockets but can also be implemented for 4
sockets as well. There are additional I/O slots available on CPU1 and CPU2 for network
adapters to be on the same CPU complex as the NVMe.