NVMe Enterprise SSDs Over Fabrics Can Conquer Latency
A revolution is underway in the way enterprise SSDs are used in the data center. This revolution was boosted by an announcement that was made with little fanfare earlier this month, and its repercussions for enterprise SSD users could be titanic. The announcement in question detailed the new NVM Express over Fabrics specification which NVM Express, Inc. released in June. This is the organization which developed the NVM Express ( #NVMe ) specification for accessing solid state storage such as enterprise SSDs connected to the server’s fast memory bus over a (slower) PCI Express (PCIe) bus. Slower is a comparative term: the PCIe bus is much, much faster than using SATA or even SAS connections. NVMe takes advantage of the parallelism of flash storage to lower the I/O overhead, improve performance and reduce latency.