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NVMe-oF Configuration
with RDMA
Non-Volatile Memory Express over Fabrics (NVMe-oF) enables the use of
alternate transports to PCIe to extend the distance over which an NVMe host
device and an NVMe storage drive or subsystem can connect. NVMe-oF defines
a common architecture that supports a range of storage networking fabrics for the
NVMe block storage protocol over a storage networking fabric. This architecture
includes enabling a front-side interface into storage systems, scaling out to large
quantities of NVMe devices, and extending the distance within a data center over
which NVMe devices and NVMe subsystems can be accessed.
The NVMe-oF configuration procedures and options described in this chapter
apply to Ethernet-based RDMA protocols, including RoCE and iWARP. The
development of NVMe-oF with RDMA is defined by a technical sub-group of the
NVMe organization.
This chapter demonstrates how to configure NVMe-oF for a simple network. The
example network comprises the following:
Two servers: an initiator and a target. The target server is equipped with a
PCIe SSD drive.
Operating system: RHEL 7.4 or SLES 12 SP3 on both servers
Two adapters: One 41000 Series Adapter installed in each server
An optional switch configured for data center bridging (DCB) and relevant
quality of service (QoS) policy
