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The SNIA Technical Council believes that it is important for storage developers to learn about the emerging technology of Data Processing Units (DPUs).  We have gathered a panel of leading DPU vendors to provide an overview and answer the following questions.

A prominent trend in disaggregated storage is the use of Non-Volatile Memory Express over Fabric (NVME-oF) and in particular, NVMe over TCP to connect storage devices over a network. But there is no straightforward to provide this storage to Virtual machines and containers. The hypervisor will still need to emulate virtio-blk or virtio-scsi kind of emulated interfaces to expose this storage which involves usage of hypervisor processor cycles.

A prominent trend in disaggregated storage is the use of Non-Volatile Memory Express over Fabric (NVME-oF) to connect to storage clusters. DPUs provide local NVMe controller to remote NVMe over Fabric storage offload, where the NVMe devices can appear as local PCIe controllers to the VMs and containers but can reach to namespaces provided over NVMe over Fabric target storage with the help of the DPU without the involvement of the host.