Thursday, November 9, 2017

Word of the Day: NVMe

Word of the Day WhatIs.com
Daily updates on the latest technology terms |November 9, 2017
NVMe (non-volatile memory express)

NVMe (non-volatile memory express) is a host controller interface and storage protocol created to accelerate the transfer of data between enterprise and client systems and solid-state drives (SSDs) over a computer's high-speed Peripheral Component Interconnect Express (PCIe) bus.

The NVMe specification defines a register interface, command set and collection of features for PCIe-based SSDs with the goals of high performance and interoperability across a broad range of NVM subsystems. The NVMe specification does not stipulate the ultimate usage model, such as solid-state storage, main memory, cache memory or backup memory.

NVMe provides an alternative to the Small Computer System Interface (SCSI) standard and the Advanced Technology Attachment (ATA) standard for connecting and transmitting data between a host system and a peripheral target storage device. The ATA command set in use with Serial ATA (SATA) SSDs and the SCSI command set for Serial Attached SCSI (SAS) SSDs were developed at a time when hard disk drives (HDDs) and tape were the primary storage media. NVMe was designed for use with faster media.

The main benefits of NVMe-based PCIe SSDs over SAS-based and SATA-based SSDs are reduced latency in the host software stack, higher input/output operations per second (IOPS), and potentially lower power consumption, depending on the form factor and the number of PCIe lanes in use. Read more...

Quote of the Day

"For enterprises seeking to get the most out of flash storage, an investment in NVMe technology is becoming a foregone conclusion." - Scott Sinclair

 

Trending Terms

nonvolatile storage
solid-state drive

PCIe
latency
3D XPoint
NVMe over Fabrics

 
Learning Center

Are you ready for NVMe storage and the future of flash?
Flash storage shifts the bottleneck to the storage network. NVMe storage technology and NVMe over Fabrics promise to address this problem.

Looking at NVMe storage technologies today and tomorrow
NVMe storage uses the fast NVMe connection protocol and flash-based SSDs. This guide outlines reasons why it might be the right choice for you.

The present and likely future of the NVMe protocol
Data speed in and out of SSDs led to the development of the NVMe protocol. Enterprises quickly saw the value in extending NVMe to storage networks.

How NVMe over Fabrics will change the storage environment
NVMe over Fabrics for high-end networking and the NVMe protocol replacing SCSI and SAS connectivity will each find a place in the data center.

NVMe flash array startups Pavilion Data, Vexata jump in
Most enterprises don't yet need the performance of an NVMe flash array, but that hasn't stopped startups from launching new storage products.

Writing for Business

Bringing in all-flash for primary storage adds a faster system that can provide greater __________ value for the company.
a. economical
b. economic
Answer

 

Stay In Touch
For feedback about any of our definitions or to suggest a new definition, please contact me at: mrouse@techtarget.com

 

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