Re: Intel Rapid Storage Technology does not detect a RAID 1 fault

Samuele · ‎10-28-2025

I have a problem with Intel Rapid Storage Technology: I have two PCs configured with two disks of 1TB in RAID 1 configuration.

If one of the disks get failed, the application does not detect the RAID fault: not only no specific messages is logged in Windows event viewer, but also the application shows that the RAID is still properly working.

In the past, with other computers with older driver and application versions (19.x), when a disk had a problem and so RAID was faulty, a message was written in Windows event viewer (ID 7206).

The fact that now no message appear is a problem, because I have no control on RAID status.

Below the versions of the application and of the driver in the two PCs (one is DELL, the other HP, so it does not seem to be relate to a specific manufacturer).

Product (application) version: 20.0.1021.0

Driver version: 20.2.6.1025

Product (application) version: 20.0.1021.0

Driver version: 20.2.1.1016

I also detect that after RAID failure, if the application is closed and open again, an error message is displayed and it is not possible to open it, until a complete PC restart.

After the restart, there is a message of possible error and the faulted disk is read as "Unknown"

RandyT_Intel · ‎10-28-2025

Hi @Samuele,

Thank you for posting here in our community. To effectively diagnose and address the issue you're experiencing, I kindly ask you to provide detailed responses to the following questions. This information will help us isolate the problem and determine the most appropriate course of action.

Please provide the SSU log report for both systems and share it here so I can review your system's configuration.
When did the issue first occur?
Have you made any software or hardware changes to the system recently?
Have you tried uninstalling the software and using the RST version provided by your system manufacturer? If so, did you notice any difference?(Please Note: Intel recommends that end users utilize driver updates provided by their system manufacturer/provider or via Windows* Update to eliminate the potential impact caused by loading non-customized drivers. System manufacturers regularly customize Intel generic drivers to meet the needs of their specific system design. In such cases, use of the Intel generic driver update is not recommended.)
Please correct me if I'm wrong, but based on my understanding, you've configured two 1TB disks. Is this the existing storage in the system, or are these replacement drives? If they are replacements, are they of the same brand? I just want to make sure I'm accurately following the issue you've reported.
What is the primary use of Intel RST on this system? (Data Drive Acceleration, RAID or Recovery)
What is your operating system version? (Version 22H2, Version 23H2 or latest Version 25H2)
Have you reached out to Dell or HP Support regarding this concern? If so, could you share what insights or feedback they provided?
Lastly, if possible, could you provide a step-by-step guide on how the issue can be reproduced or encountered? This will help me check internally whether we can replicate it on our end for root cause analysis, and determine whether it's a software bug or a potential hardware compatibility issue.

I look forward to your response and am committed to resolving your issue promptly.

Best regards,

Randy T.

Intel Customer Support Technician

Samuele · ‎10-29-2025

Hi, @RandyT_Intel ,

Thank you for your quick response!

I attached the two logs: they are named with the PC manufacturer name (HP and DELL);
The issue occurred during our RAID functionality tests;
For what we know, our suppliers receive the PC with Windows 11 installed and then provide us the PC with Windows 10 LTSC 2021 with RAID configuration already installed; no hardware changes are made.
No, we have never tried to change the driver of Intel RST, because it requires the operating system reinstall, for what I know;
We have both the situation:
- HP desktop, 1 NvMe disk is already provided and 1 NvMe disk is install by our suppliers. In this case, the two disks are not the same brand
- DELL desktop, both the disks are already provided and are the same brand/model
The primary use of the Intel RST is the management of the RAID 1;
The OS version in both the computer is Windows 10 LTSC 2021 21H2;
We have not reached out DELL and HP because we saw that the problem is not linked with a single brand or a single Pc's;
In years of working, I was not able to find a way to try analytically to test the RAID fault in Windows as it is possible to do on Linux, so that the only way to test it (and we need to verify that RAID is properly working to be covered in case of fault), is to remove one of the two disks on hot unplug: I am consciuous about the risks for the SSD/motherboard, if you know a safer way to perform the same test and you want to suggest it to me, I am open to accept it.

I should have answered to all your points; if you need further information, do not hesitate to ask me.

Samuele · ‎10-30-2025

Hi @RandyT_Intel ,

thank you very much for your kindly and rapid response.
Here's what you ask about:

1) in attached the files that you request, nominated based on brand's name;
2) the issue firstly occurred during our RAID test, which is necessary to be sure that RAID is working properly and detects a possible fault;
3) For what I know, the PCs arrived to our suppliers with W11 Pro and then they install W10 LTSC 2021; no hardware changes are made after that they install the O.S.;
4) No, we have not tried to uninstall the Intel RST because, as I know, it's necessary to reinstall the complete operating system. In any case, for other reasons, the HP computer was completely reset and reinstalled by the supplier, but the issue with RAID was still present;
5) We have both the situations:
- HP desktop, one disk NvMe 1TB is already provided with the pc and one is installed by our suppliers, which, in this case, is not the same brand;
- DELL desktop, both the NvMe 1TB disks are already provided with the PCs and are the same brand/model;
6) The main use of Intel RST is to manage the RAID 1;
7) In both the computer, the operating system is Windows 10 LTCS 2021 21H2;
We have not reached DELL's and HP's support because we saw that the problem was not linked to a single PC's or a single Brand, thought it might be more efficient to contact Intel;
9) During over a decade's of working, I was not able to find an analytical way to test the correct working of RAID like on Linux, so, knowing the danger for the disk and the motherboard, the test that I do is to run the PC and then hot unplug one NvMe: if you know a less dangerous way to test RAID, I am open to try it.

Like I said, I know the risk about doing this test; if you have some suggests or different method for have a more secure way to test, I will be very grateful.

If you need some more information, do not hesitate to ask me.

RandyT_Intel · ‎10-30-2025

Hi @Samuele,

It is always advised to use the version provided by the manufacturer of your system/motherboard, this is because the version that they provide could be customized to work in the best way with your system, this does not mean however, that our latest version would not work, our last version should definitely work as well but the recommendation is to use the one provided by the manufacturer first.

Please try the following versions below:

For HP: HP Z2 SFF G1i Workstation Desktop PC Software and Driver Details

For Dell: Intel Rapid Storage Technology Driver and Application | Driver Details | Dell US

Support for Dell Pro Max Tower T2 FCT2250 | Drivers & Downloads | Dell US

Let me know if this works.

Best regards,

Randy T.

Intel Customer Support Technician

RandyT_Intel · ‎11-03-2025

Hi @Samuele,

I'm following up on the previous recommendation I provided. Have you had a chance to review the information and apply it to your system? Please let me know the outcome so I can determine the next best course of action.

Best regards,

Randy T.

Intel Customer Support Technician

Samuele · ‎11-06-2025

Hi @RandyT_Intel ,

Sorry for the delay, but we made some tests on RAID in these days.

Unfortunately, the solution that you suggested did not work: even with drivers versions downloaded from links above, the situation did not change...

Do you know if there is an alternative solution to query Intel driver in order to know the RAID status? Is it possible to interrogate it directly, so that I should not check on Windows event log to see if there has been some faults?

RandyT_Intel · ‎11-06-2025

Hi @Samuele,

All basic troubleshooting steps have been exhausted on my end. I’ve also double-checked the logs you provided, and confirmed that both the Intel and BIOS drivers are updated to their latest versions. You’ve already tried the OEM drivers I previously recommended, but unfortunately, the issue still persists.

This behavior is not typical of Intel RST. Normally, if a drive shows as "Unknown hard disk (0 Bytes)", RST should flag this as a RAID failure. At the very least, the array should be showing a "Degraded" or "Failed" status.

RST is expected to provide clear fault notifications and offer rebuild options. I attempted to find any relevant queries or commands that could help identify notification failures, but I wasn’t able to locate anything useful on my end.

This is just my personal assessment, but the issue might be related to a previous change in the operating system. I’m also not certain whether the current version of Windows you're using is fully compatible with RST Enterprise, as opposed to the generic RST application.

For now, please allow me some time to coordinate this internally for further investigation. I’ll post an update here as soon as I gather more information that could potentially help resolve the issue with the RST software.

Best regards,

Randy T.

Intel Customer Support Technician

Samuele · ‎11-07-2025

Hi, @RandyT_Intel ,

Thanks for your help!

I will look forward to hearing from you.

Best regards

RandyT_Intel · ‎11-11-2025

Hi @Samuele,

To help us better diagnose the issue, we need a few additional details:

Could you please move your cursor to the area highlighted in the red circle (as shown in the previous snapshot) and take another screenshot? This will help us see the detailed information when you hover over that section.

Also, please capture and share your Windows System Event Log, particularly looking for any RAID-related events.

To get a complete picture, please also provide:

"Save system report" to a TXT file
Use "RstCliPro.exe" tool - command line: RstCliPro.exe --information

We've noticed a potential issue with event notifications. If you're experiencing a Degraded RAID 1 status, we should see Event 7206 in the Windows System Event log. The absence of this event may indicate an additional problem with the notification system.

Please share these details when convenient, and we'll continue troubleshooting from there.

Thank you for your patience!

Best regards,

Randy T.

Intel Customer Support Technician