RAID 0 disk failure, how to recover the RAID?

"You cannot.

RAID 0 caused half of data to be on one disk and half on other. You literally have block of data interleaving one another (in order to maximize performance). I am not aware of any tool that can come even close to untangling that mess and even if there was such tool, you can hope for 64K block recovery topmost.

Best chance is either finding same electronics (and hoping that electronics is all that failed) or recovering data from backup."

"I guess you understand that RAID-0 is just striping the disks, there is no redundancy.
You could try RAID Reconstructor.

It will not try to ""fix"" your RAID. It will merely create a copy of your RAID at another location. It will collect sector by sector from each single drive involved and write these sectors in the correct order to the designated destination. This process is also called ""de-striping"".
For a RAID-0 (striped) array you will need all drives.
The RAID Reconstructor will recover both, hardware and software RAIDs. It will recover from broken Windows Dynamic Disk sets.

The part in bold may be a problem for you :-(.
I don't know if your copied disk will work..."

"I think it depends what kind of RAID was used. Is it a mdadm linux software RAID?

If this is the case and both drives are exaxctly the same model and same firmware then you can try to the can use the board from the intact drive to recover the data from the defective drive. You should be able to use the images of the harddrives and use them as normal RAID members.

Note that RAID 0 is not normal RAID where you have redundant information. RAID0 stripes the information across drives/partitions. If you have a file which is larger than the used stripe size (e.g. >64KB, which is a typical value) then part of that file will be on one disk and part on another disk. This makes full recovery impossible if any drive fails."