Reference Guide

9 NVMe and I/O Topologies for Dell EMC PowerEdge Servers
Populated with twenty-four NVMe drives
Figure 5: PowerEdge R740xd CPU mapping with twenty-four NVMe drives
Performance 2U Server; Maximize NVMe Capacity
This 2U R740xd configuration supports twenty-four NVMe drives. The NVMe drives are
connected through PCIe switches, which allows the system to overprovision PCIe lanes
to more NVMe drives while persevering I/O slots, therefore enabling low latency CPU
access to twelve devices per CPU. Performance can easily be scaled for various dense
workloads, such as big data analytics. This configuration appeals to customers wanting
to consolidate Storage media to NVMe (from SAS/SATA). Customers requiring large
capacity with the low latency of NVMe will benefit from this configuration, with up to 24
NVMe drives available for population.