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Guru3D.com » News » NVMe 1.3 Specifications are finalized with new features

NVMe 1.3 Specifications are finalized with new features

by Hilbert Hagedoorn on: 05/25/2017 06:10 PM | source: | 6 comment(s)
NVMe 1.3  Specifications are finalized with new features

As you guys know, NVM Express (NVMe) is a logical device interface specification for accessing non-volatile storage media attached via a PCI Express (PCIe) bus. The protocol is used on your M2 SSD for example to gain such high performance. NVMe 1.3 has just been finalized.

As it seems Version 1.3 is a massive update  of the protocol ever since the last one was released in 2014 and wil offer new features found in other storage protocols including the venerable ATA and SATA, as well as the low-end eMMC. Tech report has a nice write up on the topic:

Perhaps one of the coolest features in the new spec is support for streams. Simplifying: with the current spec, if multiple files are being written to a drive simultaneously, chances are that their individual blocks will end up interleaved on the drive. With support for the streams directive, the controller can tell the drive how to physically store the data it's sending. Using the previous example, all the data for each file could end up physically sequential on the drive, possibly improving read speeds and potentially lowering write amplification. The concept should be familiar to anyone that's old enough to have watched a defragmentation graph.

The new specification also includes a device self-test feature, similar to the SMART features present in ATA and SATA drives since the mid-1990s. The spec calls for short and long tests. The tests may temporarily decrease device performance but won't disrupt device availability. The short test must finish in less than two minutes without disturbing the contents of the device. The long tests may write to the device, but all user data must be preserved and drives have to offer an estimate of the time until the test completes.

Another new feature is a sanitize command, also already available on SATA devices. The sanitize feature renders all data on a drive unrecoverable and ensures that any data in the drive's cache or buffers is equally cleared. Systems may also specify what kind of method the drive should use for wiping the data: block erase, overwriting, or encryption key destruction (on applicable drives).

New namespace, virtualization, telemetry, and thermal management features are also included in the new specification.

Storage enthusiasts and wel true g33ks can read a summary of the new features here, and the true masochists can read the complete 282-page specification document. Be warned though, it's a tough read.







« EK Full-Cover water blocks for 1080 Ti AORUS graphics cards · NVMe 1.3 Specifications are finalized with new features · Update Your NAS Server - There is a Vunerability in Samba »

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Kaarme
Senior Member



Posts: 2942
Joined: 2013-03-10

#5435892 Posted on: 05/25/2017 08:03 PM
Sounds good.

If experience of defragmentation already means one must be old, then I must be an ancient mummy already.

waltc3
Senior Member



Posts: 1390
Joined: 2014-07-22

#5435928 Posted on: 05/25/2017 08:52 PM
Cant wait for a 2TB in the $300 range


Looking forward to 2TB in the $100 range, myself... ;)

Fox2232
Senior Member



Posts: 11809
Joined: 2012-07-20

#5435958 Posted on: 05/25/2017 09:43 PM
Sounds good.

If experience of defragmentation already means one must be old, then I must be an ancient mummy already.
I can't even count number of hours spent looking at those squares moving around while reading.

And when Windows 98 came... 1st thing I did was to enable compression. Then I realized it makes things much slower. So as 1st thing I decided to defrag, since reduced physical occupation should have created kind of fragmentation.
That took ages. And it did not help at all. So I admitted that drive compression with iP 133 @180MHz is bad idea. And decompressed entire thing again to run another defrag.

Those were funny times, and situations like that gave me a lot of time to read or watch TV. Real TV. I did not watch real TV broadcast for over 18 years.

It was funny surprise when back in the day I wanted to connect TV to PC and realized that it was dead. It must have been dead for years, just catching dust while turned off.

Unilythe
Member



Posts: 78
Joined: 2016-08-22

#5435987 Posted on: 05/25/2017 10:23 PM
Sounds good.

If experience of defragmentation already means one must be old, then I must be an ancient mummy already.

Right, I'm 25 years old and I remember doing that **** to speed my PC up when I was a kid. I also remember getting a really satisfied feeling seeing all those blocks move from completely deorganized to, well, somewhat organized.

The Average
Member



Posts: 42
Joined: 2017-03-03

#5436066 Posted on: 05/26/2017 07:00 AM
iP 133 @180MHz


What? How did you OC that one? I never managed to OC mine...486 were easy though.

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