NVMe Management Interface – Part Four

Posted on 12/07/2018

NVMe Management Interface Architectural Overview NVMeTM Management Interface (NVMe-MITM) is targeted at enterprise and hyperscale applications and currently not at client applications. The use cases include: Inventorying (Asset Management), Health Monitoring (Identify bad drives), Wear Monitoring (Replace drives nearing wear-out), Temperature Monitoring (Fan throttling), Power Monitoring and configuration, Configuring (format drives,… Read More

NVMe Readiness – Part Three

Posted on 12/07/2018

NVMe Specification Readiness NVM Express® is an open collection of standards and information and the NVM Express organization (www.nvmexpress.org) is responsible for specifying the NVMe specifications. To date (August 2018) it has released several specifications: Base NVMe Specifications including NVMe 1.0e, 1.2.1 and 1.3 NVMeTM Over Fabric 1.0 Specification… Read More

NVMe Over Fabrics – Part Two

Posted on 12/07/2018

NVMe Over Fabrics Architectural Overview NVMeTM Over Fabrics replaces the PCIe transport with a fabric technology such as RDMA or Fibre Channel (FC) fabric as shown in Figure 3. Transports for RDMA fabric include Ethernet (ROCE), InfiniBand and iWARP. Native TCP (non-RDMA) transport is also possible (TCP is still Work-In-Progress as… Read More

Base NVM Express – Part One

Posted on 12/07/2018

Written by Murali Rajagopal, PhD- VMware Storage Architect, Office of the CTO There is much in the way of NVMe ExpressTM (NVMeTM) literature publicly available especially surrounding SSDs – mainly originating from device manufacturers. This blog provides a grand overview of the NVM ExpressTM technology, the eco-system, NVM ExpressTM specifications,… Read More

StorageShort: Why Does The Data Center Need NVMe Over Fabrics?

Posted on 10/16/2017

The NVMe protocol allows servers or storage systems to communicate to flash storage with more optimally. This PCIe-based architecture enables larger command sets and IO queue depths resulting in lower latency and greater performance. It is a wholesale replacement for SCSI. But there is another SCSI protocol lurking in the… Read More

NVM Express spec updated for data-intensive operations

Posted on 07/10/2017

This is another one of those geeky stories that actually has some significance. The Non-Volatile Memory (NVM) Express group has issued version 1.3 of its SSD spec, with emphasis on performance around analytics and virtualization. NVMe is a communications interface/protocol designed specifically for solid-state drives (SSDs) because the old standard,… Read More