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What is NVMe and how can it help me?

  • 1.  What is NVMe and how can it help me?

    Posted Fri September 25, 2020 09:34 PM
    Edited by Peter Basmajian Fri October 09, 2020 03:02 PM
    We're often asked how NVMe technology can help IBM FlashSystem users, or those using our SAN switches.  Here is the first in a series of NVMe-related posts and frequently-asked questions. Please add any others you think will help other community members in the comments!

    Q: What is NVMe?
    A: Fundamentally, Non Volatile Memory Express (NVMe) is a protocol designed for high speed storage media. It's designed to remove some of the bottlenecks present in existing protocols, as well as increase the number of data queues which increases the ability to process data in parallel.

    Listen to IBM Distinguished Engineer @Brian Sherman and technology partner Broadcom explain in this short video!

    Q: As with any leading-edge technology, are there any risks or trade-offs to deploying NVMe that users need to be aware of? Listen below. 


    Q: Is NVMe all about speed? Or are there other advantages?

    Q: Should users consider special timing?

    Q: What is NVMeOF?
    NVMe Over Fabric (NVMeOF) extends the advantages of the NVMe protocol to the host layer, allowing lower latencies, increased transfer rates and reduced server IO workload demand. 16 and 32Gb Fibre Channel cards already support NVMeOF, and 25GbE iWARP and RoCE cards are ready for NVMeOF. This means you don't have to upgrade your IBM FlashSystem or IBM SAN Volume Controller (SVC) hardware when you upgrade your host environment. Host drivers and workloads also need to be ready for NVMeoF.

    Q: Do I have to use NVMeOF to take advantage of the NVMe storage?
    No, you can still use the other host interfaces (Fibre Channel and iSCSI) to take advantage of the NMVe storage.
    If you have other questions for our experts, please reply in the comments and they will reply directly! @Timothy Werts @Brian Sherman @Craig Nelson
    Peter Basmajian
    Global Product Marketing and Advocacy, IBM
    San Francisco CA 650-542-7246