This message was posted on behalf of Intel Corporation
Thank you for contacting Intel® technical support. I will be more than happy to help you.
I understand that you are having issues a RAID 0 volume that is no longer detected after starting the system in automatic recovery mode.
I do apologize for the inconvenience, but in this situation the only possible option would be reinstalling the operating system, which is a data destructive process.
In order to do so, you need to access the Intel® RST ROM mode to delete the current RAID volume, install the operating system in a non-RAID drive, and the create the RAID 0 volume again with Intel® RST.