MPG Z690 EDGE WIFI DDR4 - Poor RAID0 Performance

ms150e02d0

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Jan 20, 2022
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Hello all,

I just bought a MPG Z690 EDGE WIFI DDR4. The following components are installed:

1x I9-12900K
2x WD_BLACK SN850 1 TB M.2 NVMe ( usually around 7.000 MB/Sec; installed on M.2_1 and M.2_3)
2x Corsair MP600 CORE 4TB M.2 NVMe ( usually around 4.000 MB/Sec; installed on M.2_2 and M.2_4)
2x Corsair Vengeance 32GB DDR4 3200MHz
1x PNY Quadro P1000

I enabled RAID in BIOS and configured as follows:
- RAID0 with 2x WD_BLACK SN850
- RAID0 with 2x Corsair MP600

After the WIndows 10 (64Bit) installation I performed a benchmark.
The WD Black RAID2 comes sequentially to about 3500MB/sec write and 3300MB/sec read (Crystalmark and ATTO).
The Corsair RAID comes to about 3500MB/Sec sequentiall read and write.
Bench and Raid.PNG

If I test a single WD_BLACK SN850, I get 6500MB/s read and 4000MB/s write.

Of course, I expect double the speed in RAID0.

The firmwares of the M.2 storage are up to date. Before configuring the RAID, I reset the BIOS settings to optimal defaults.
Under Windows I have installed the current Intel RST VMD controller driver (July 2021).
Disk1.PNG Disk2.PNG

I am quite frustrated about the poor performance and hope to find help here (I already considered buying another board).
Does anyone have any ideas what this could be? With such low values, I now still assume a configuration error on my part.

Thanks for all your tips and support!
 
Last edited:

teletubby_po

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hi how did you set up your RAID? is it SW RAID or configured with BIOS?
do you have sata drives installed? can you list the models and location? listing complete system configuration is recommended: Posting Guide
are you on the latest BIOS version? it is 7D31v11
have you tried benching raid array when there's only m2_1 and m2_3 populated?
 
Last edited:

p4spooky

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1. Please confirm you are using driver 19.0.0.1067 or higher for Intel VMD
2. Recommend you install SN850 drives on M2_1 and M2_2 and check speed again
3. Move the Corsair drives to M2_3 and M2_4 slots and check speed again
 

citay

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Unless you need the higher linear thruput for some very specific reason, then the RAID0, even if it were to deliver double the transfer rates, won't be much faster in reality. RAID0 will improve the speed in benchmarks, the linear thruput will be higher of course, but in daily use there is not much left of that. The renowned German "c't magazine" tested an NVMe RAID0 with four SSDs on a Threadripper workstation, and while the measured thruput increased massively to 14.6 GB/s, in real-life applications it wasn't any faster than a single fast Samsung 980 Pro. The article is in German and behind a paywall, but i have the magazine and i've read it in full. It has to do with access times and where the bottlenecks really are as to why it can't be much faster in real-life tasks.

Add to that the fact that RAID just has a tendency to create all sorts of problems along the way with the BIOS setup and so on, i read it regularly on this forum. So nowadays, especially with NVMe PCIe SSDs, a RAID delivers no tangible benefit, but can result in some clear disadvantages. That's why i do not recommend using it anymore.
 

ms150e02d0

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1. Please confirm you are using driver 19.0.0.1067 or higher for Intel VMD
2. Recommend you install SN850 drives on M2_1 and M2_2 and check speed again
3. Move the Corsair drives to M2_3 and M2_4 slots and check speed again
Thanks for your answer.
I can confirm driver version 19.0.0.1067.
I will try 2. and 3. and let you know the result.
 

ms150e02d0

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Jan 20, 2022
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hi how did you set up your RAID? is it SW RAID or configured with BIOS?
do you have sata drives installed? can you list the models and location? listing complete system configuration is recommended: Posting Guide
are you on the latest BIOS version? it is 7D31v11
have you tried benching raid array when there's only m2_1 and m2_3 populated?
It's a "hardware RAID" configured in BIOS.
No SATA-Drives installed.
I am on latest BIOS version 7D31v11, but also tried it with 7D31v10 (same results).
I also performed a benchmark without Corsairs on m2_1 and m2_3 without any difference in performance.
 

ms150e02d0

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Issue solved by installing drives to M.2_1 and M.2_2 (respectively M.2_3 and M.2_4).
Numbering in (printed and digital) manual are wrong.

Thank you P4Spooky!


Manual -> Real numbering
M.2_1 -> M.2_1
M.2_2 -> M.2_3
M.2_3 -> M.2_4
M.2_4 -> M.2_2
 

p4spooky

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Fantastic - I am running one PCI-e 4.0 drive so did not have this issue although I am running SATA RAID on this board. Request you post a pic of your drives along with the remap you have done, I am sure it will help someone.
 

teletubby_po

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yes could you please let us know which combination works? 1+2 & 3+4?
1643002525112.png
 
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