By combining NVMe™ SR-IOV and composable infrastructure, it allows sharing of a single NVMe™ SSD among multiple hardware domains, or multiple roots, at the same time provides an independent, direct IO path between any virtual machines and NVMe™ devices to eliminate I/O bottlenecks. In addition, the solution adopts a PCIe interface for hardware interconnection, which assures high bandwidth and keeps I/O latency as low as 1 microsecond (native to the host machines) for data transmission. Together, these help to utilize the bandwidth and memory resources of NVMe™ devices more efficiently. The PCIe 5.0 NVMe™ MR-IOV system can easily reach over 58.8 million IOPS.
In PCIe 5.0 NVMe™ MR-IOV storage system, all NVMe™ SSD physical and virtual functions are controlled by a management server. In other words, the resources belong to the management server root port, and the assigned NVMe™ virtual function will be recognized as an independent PCI device by the host machine or VM. As a result, the host machine/VM can only access the NVMe™ resource assigned to it, and all the other data stored in the system are well separated and protected.
Users can configure and assign NVMe™ SSD virtual functions to any connected hosts without interrupting ongoing workloads. Customize your namespace capacity and sharing property, attach to any virtual function, and assign to any virtual machine to meet varied storage requirements for performance-demanding applications. H3’s PCIe 5.0 NVMe™ MR-IOV solution helps data centers/ enterprises to provide the fine-granularity of NVMe™ SSD and online reprovisioning to hosts while keeping the hardware complexity as low as possible.
With MR-IOV enabled, I/O wait time is reduced substantially. Without having to handle I/O interrupts, spared CPU and SSD resources are able to handle more meaningful tasks, thus the CPU and SSDs in the system can be fully utilized and the overall hardware cost is reduced due to less hardware needed. In addition, the PCIe 5.0 NVMe™ MR-IOV solution allows direct connectivity from multiple hosts, significantly reducing the amount of cabling required in the system and the architecture complexity.
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