RAID 10 single drive failure, array not visible, MSI PRO X670
The system was running Windows Server 2019 for about a year on a four-drive RAID 10 array using an MSI PRO X670 motherboard. After shutting it down for the weekend, it wouldn’t boot into Windows. It did load into the Windows troubleshooter, but no partitions from the RAID array were visible.
In the BIOS, one of the drives shows as “removed,” while the other three are online. The array status is “critical,” but since three drives are active, it should still be operational in a degraded state.
I booted from the Windows Server DVD, went into the installation menu, and loaded the AMD RAID drivers from the same USB drive used during the initial setup. Still, the installer doesn’t detect the array. No drives appear, so I couldn’t proceed.
Looking for any advice on how to access the array long enough to recover the data. Any method or workaround would help.
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The RAID 10 array on your MSI PRO X670 motherboard became inaccessible after a single drive failed. Even though three drives are still online, the system doesn’t detect the array or show any partitions, not even after loading the correct AMD RAID drivers.
This could be due to RAID metadata corruption, a bad connection to the failed drive, or BIOS changes. Do not rebuild or initialize the array — that can wipe the data.
Start by checking the physical connection of the removed drive. Reseat cables or swap ports. Then enter the AMD RAID BIOS (RAIDXpert2) and check if the array can be imported or viewed without initializing.
If that fails, try using a Linux live USB with mdadm or dmraid to assemble and access the array. If Linux doesn’t detect it, use RAID recovery software like Stellar Data Recovery Technician, R-Studio or UFS Explorer to scan and recover the data.
Once the data is safe, replace the failed drive and rebuild the array. For future reliability, consider using software RAID or a dedicated RAID card instead of motherboard-based RAID.