NVMe-oF — NVMe over Fabrics
Definition
An extension of the NVMe protocol that allows NVMe commands to traverse network fabrics (TCP, RDMA over Ethernet, Fibre Channel) for shared storage.
Context & Usage
NVMe-oF brings the low latency of local NVMe to networked storage, replacing iSCSI/Fibre Channel for new high-performance deployments. Three transport variants: NVMe/TCP (any IP network, easiest deployment), NVMe/RoCE (low-latency RDMA over Ethernet), NVMe/FC (over existing Fibre Channel fabric). Typical latency: ~20-50 μs vs iSCSI ~100-300 μs. Adoption is growing in 2026 — major SAN vendors all support it.
Examples
- Pure Storage FlashArray//X with NVMe/TCP
- Dell PowerStore NVMe-oF support
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