Nvme 1.4, the new protocol that improves speed is announced

NVM Express has already released the NVMe 1.4 specs, in addition to announcing that the NVMe over Fabrics (NVMe-oF) 1.1 specs has entered the final revision.

NVM Express has already released the NVMe 1.4 specifications with various improvements

The NVMe 1.4 connection architecture provides a faster, simpler, and easier to scale tool, while the NVMe-oF 1.1 architecture improves communication and formally introduces NVMe / TCP to the industry.

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In this way, the protocol is adjusted to improve the speed of data transfer in this type of connection, which is used, above all, in SSD-type storage, which is currently booming. The specification provides benefits such as better quality of service (QoS), faster performance, improvements for high availability deployments, and scalability optimizations for data centers.

NVMe 1.4 Features:

• Rebuild Assist simplifies data recovery and migration. Persistent event logging enables robust drive history to address issues and debugging at scale. NVM sets and IO determinism enable better performance, isolation, and QoS. Enhancements to multipathing or Asymmetric Namespace Access (ANA) allow for optimal and redundant paths to namespaces for high availability and full multi-controller scalability. Host Memory Buffer reduces latency and design complexity.

Features of the NVMe-oF 1.1 specification:

• TCP supports NVMe-oF in the current data center TCP / IP network infrastructure. Asynchronous events inform hosts of the addition or removal of destination ports independently. Factory I / O Queue Disconnect allows management of Enhanced I / O resources. End-to-end (response command) improves concurrency.

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