Diskpart performed an unintended cleanup on the incorrect drive.
Diskpart performed an unintended cleanup on the incorrect drive.
Only a pristine surface was left, and the structure remained undamaged, allowing testdisk to locate the partitions and rebuild the partition table.
I assigned a drive letter to the disk I accidentally used, but the clean command failed with an error saying "something about it not being initialized." Right now I'm using data recovery software to check the file structure one final time. I've already done this on another drive and saw some folders and files with properties, though nothing visible in the preview window—just no content. The cost for having experts handle it seems around 900 for my job. In the future, I'll just store the drives and bring them to a professional.
When using a RAID0 configuration, placing anything on just one drive doesn't work—it must be part of the array. One drive can only store half of all data, making it completely useless for recovery.