Mariusz, Thanks for taking a look at this. > This is RST family product but mdadm implements VROC solution. Both > products have same origin but now they are not aligned and as you can > see, they may not be compatible at all. Is RST support planned for mdadm? > Here we have Sata remapping under VMD controller. I > think that our mdadm implementation is not able to handle it correctly, > we are assuming that it must be nvme device. Out of curiosity, would you expect an array of NVMe devices to work? This kind of programming is far outside of my expertise, but if there's anything I can do to help an effort to add this support to mdadm, please let me know. I can provide more information about the hardware, and I can build and run tests if that's useful. Thank you! Kris