#121 - NVMe 1.4 Deep Dive Part II with J Metz

This podcast episode continues the discussion with Dr J Metz and focuses on the detail of NVMe 1.4 and NVMe over Fabrics 1.1. Both standards are complete and have been published in the last few months. The conversation today digs deeper into what the new standards offer and specifically how NVMe/TCP becomes “officially” part of the NVMe standard.

The conversation on NVMe/TCP is particularly interesting as it highlights how the protocol will offer significant benefits over iSCSI. The details in the podcast are quite technical and so it’s worth checking out some of the additional background material online. You can find out more on NVMe at the dedicated Architecting IT NVMe microsite.

For more information on the new standards, check out NVMExpress.org. More about Fibre Channel is available at FCIA.org and of course don’t forget to read up on J’s own NVMe content at jmetz.com.

Elapsed Time: 00:32:22

Timeline

00:00:00 – What is in the specifications?
00:01:20 – More internal device & system information – logs
00:07:00 – Namespace changes, space reservations and so on
00:09:00 – NVMe 1.4 and PCI 4.0 – what performance improvements will we see?
00:10:00 – Where has NVMe-oF 1.1 reached?
00:11:40 – NVMe/TCP becomes “official”
00:15:55 – SPDK from Intel – drivers in user space.
00:18:00 – How does NVMe/TCP compare to Fibre Channel or iSCSI? 00:20:25 – How will standards be refactored?
00:23:05 – Will we see specific enterprise & consumer devices? 00:24:55 – Enterprise devices need I/O protection
00:27:10 – New features are designed for hyperscalers
00:28:45 – What’s in the future? Efficiencies and use case features
00:30:00 – Wrap Up

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