Zitat von Busido_RUS im Beitrag #90

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I now think that in the original Samsung drivers for ssd pm1725b there is a mistake. Can you check again?
I do not understand why they are not installed.

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@Mattiwatti:
Welcome to the Win-RAID Forum and thanks for your very interesting contribution.
As soon as I have the required time, I will do some tests with your attached 64bit Samsung NVMe driver v1.4.8.3 dated 07/26/2016.
Regards
Dieter (alias Fernando)

@Mattiwatti:
Yesterday you made me so curious regarding the 64bit Samsung NVMe driver v1.4.8.3, that I have already started some tests.
As you know, this driver belongs to a driver generation, which has been designed by Samsung just for their Server NVMe SSDs (SM1715, XS1715, PM1725 etc.) and not for their Retail Consumer NVMe SSDs (like the 960/970 EVO series).

Accidentally I have recently done a clean install of Win10 x64 Prof. v1909 onto my 500 GB Samsung 970 EVO Plus SSD, which gave me the opportunity to do some benchmark tests with a fresh and very performant system.

Here are the benchmark results I got by using the MS in-box NVMe driver (left Pic) and the Samsung NVMe driver v3.2.0.1910 WHQL (right Pic):


As first step I modified the nvme.inf file of the 64bit Samsung NVMe driver v1.4.8.3 dated 07/26/2016 to make it usable with my NVMe SSD resp. its Controller and gave the modded driver a digital signature.
After having set a "Restore Point", I installed this freshly mod+signed driver manually without any problem. It was taken by the OS automaticly after I had chosen the option "Browse my computer..." and navigated to the driver folder (no need to force the installation).
Encouraged by the results (see below picture), I tried to make this specific driver usable as generic NVMe driver, which may support all NVMe Controllers (no matter, who was the manufacturer and which was the model of the SSD).
After having done the related INF file modifications and given the driver a digital signature, I tried to get this AIO NVMe driver installed - and succeeded at first attempt!

Here are the benchmark results I got with the mod+signed Hardware-specific (left Pic) and generic 64bit Samsung NVMe driver v1.4.8.3 (right Pic):


Since this success had blown wind under my wings, I searched for newer Samsung NVMe drivers with a similar structure and identical SYS file name nvme.sys. The latest ones I found were the NVMe drivers v2.0.8.1611 dated 11/15/2016.
Then I did similar modifications with the 64bit Samsung NVMe driver v2.0.8.1611 and installed them as well successfully.

These were the results I got while running the specific (left Pic) and the generic (right Pic) 64bit Samsung NVMe driver v2.0.8.1611:


My conclusion:
My results verify, what you already have predicted yesterday: The old Samsung NVMe drivers named nvme.sys, which were designed for Samsung's Server NVMe SSDs, seem to be as well a very good choice for all other Samsung NVMe SSDs.
Contrary to the OFA drivers the NVMe SSD is not shown by the OS as beeing safely removable.
It has to be investigated by further tests, whether even non-Samsung NVMe Controllers are supported by the mod+signed generic variants of the Samsung NVMe drivers v1.4.8.3 and v2.0.8.1611.

@Busido_RUS:
Without any NVMe driver your NVMe SSD wouldn't work at all.
The Windows 10 in-box NVMe driver is good and will run automaticly after the installation of the OS.
If you want to install another NVMe driver, you have to update the software for the NVMe Controller (listed within the "Storage Controllers" section of the Device Manager) and not the driver of the NVMe SSD (listed within the "Disk drives" section)!

Zitat von Fernando im Beitrag #95

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It has to be investigated by further tests, whether even non-Samsung NVMe Controllers are supported by the mod+signed generic variants of the Samsung NVMe drivers v1.4.8.3 and v2.0.8.1611.

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@Busido_RUS:
As I already have written, I recommend to use the Win10 in-box MS NVMe driver.

@Busido_RUS
Provided, that you haven't meant a "Software RAID0" created by the OS, which is not bootable, here are my answers:
1. Although I haven't tried it yet, I am pretty sure, that it is possble to create a RAID0 consisting of 2 Samsung PM1725b SSDs, but not with all mainboards.
2. I doubt, that you will get long-lasting sequential read speeds of higher than 5.000 Mb/s. Look >here<, what I got with my system. Since I don't have any of your listed NVMe SSDs, I cannot tell you, which of them would be the best choice for your speed speculations.
By the way: Samsung 750 Pro NVMe SSDs do not exist.

Just for your information: Having done some tests with an Intel RAID0 array consisting of 2 NVMe SSDs doesn't mean, that I seriously planned to use it for my daily work.
A good NVMe SSD gives the user a much better performance and shorter access time than any SATA SSD, but it is an illusion to believe, that the creation of an Intel RAID0 array consisting of 2 NVMe SSDs will double the speed while working on your PC.
You will only realize a speed gain while processing very large sized files, but the big disadvantage is the risk of a sudden loss of all data in case of a problem with any of the RAID0 members.

@yura:
Welcome to the Win-RAID Forum and Merry Christmas!
Please post the HardwareIDs of the in-use NVMe Controller.
Regards
Dieter (alias Fernando)