Comments on: Ethernet SSDs – Hands-on with the Kioxia EM6 NVMeoF SSD

By: Mark Hahn

Mark Hahn — Fri, 20 May 2022 21:32:08 +0000

When can we hope for some performance measures? Latency and rate would be the interesting measures, since they could be compared on the same system and SSD with direct PCIe.

By: Mr Andre Beukes

Mr Andre Beukes — Tue, 26 Apr 2022 14:59:56 +0000

Too many folks here are still looking at this in the old “x*controllers+disks presented to hosts” fashion. Look at the statement “imagine, if…the system instead used 100GB namespaces from 23 drives”. This is incredibly powerful – picture your VM managing a classic array built from namespace #1. Your next VM has a different array layout on namespace #2, and your DPU is running its own array on namespace #3. You can do old-school arrays, object-type arrays, distributed, or whatever you want all backed by a common set of drives which just need more disks added to the network in order to expand.

The only major issue I see here is all the testing is done using IPv4, which would swiftly run out of addresses if you scale. IPv6 is despised yes, but at least show us it works please.

By: Preston L. Bannister

Preston L. Bannister — Sun, 24 Apr 2022 16:20:46 +0000

This is nuts. My drives will now run Linux and have dual Ethernet?? Also, makes sense.

Just noticed the trays are much deeper than the present drives. Does this hint at a future(?) drive form-factor?

By: Jerry-Can

Jerry-Can — Fri, 22 Apr 2022 22:52:33 +0000

I wonder what the power consumption of those controllers ‘per drive’ is, nvme aren’t exactly friendly by themselves to the overall power budget per rack per-se.

Personally I’d like to see NVME get replaced with some of that new nextgen tech Intel were talking of a few years back, though never heard about it again since.

The principle with this tech is sound, the management sounds a real headache, looking forward to seeing how fully fleshed out the ‘software’ side becomes, as in, point-and-click for the sysadmin billing by the minute.

By: North Hinkle

North Hinkle — Fri, 22 Apr 2022 21:20:55 +0000

This is truly exciting. I started working on distributed storage back in the days of Servenet, then infiniband, then RDMA over infiniband, then RDMA over ethernet,…

Kioxia has delivered an intelligent design that can be used to disaggregate storage with out the incredibly bad performance impact (latency, io rate, and throughput) of “Enterprise Storage Arrays”. It truly sucks that IT has been forced to put up with the inherent architectural flaws of storage arrays based on design principles from the 1980’s.

By: Jay Kastner

Jay Kastner — Thu, 21 Apr 2022 20:57:25 +0000

Access control and protocol latency will limit use cases, AC could be performed by the switch fabric eg by MAC or IP