Just a quick update ...
No luck as of yet with the recovery effort. Reclaime file recovery software will allow me to save out all of the files, but it does not support deduplication and therefore saves a number of files with empty data. This leads me to believe that the disks are not physically damaged. Is it common for two drives to develop bad sectors at the same time? And since Windows Storage Spaces uses a 2-way mirror (and is able to survive a single drive failure), what are the odds that sectors holding the same data are bad on two drives simultaneously? I"m trying to remain hopeful, because the prices I've been quoted to have a professional fix the problem might as well be a year's worth of mortgage payments. I invested a ton of money into this system to provide redundancy and protect me from loss. Instead, my backup plan created the disaster I had hoped to avoid.
I do want to elaborate on my progress trying to recover the data using other means, in case that information can be of value:
The storage space I want to recover shows up on the R-Studio interface and when I scan, it finds a large number of files. However, it looks like it those files are split among several slabs or partitions, which are named similarly to Recognized1, Recognized2. If I click on the storage space and open the file list, is it showing me the collective files from all recognized partitions under the storage space, or is it only displaying a single partition at a time?
Also, it would appear that the system volume information folder is mostly intact (if not fully intact). I believe the deduplication index is stored here under the Dedup folder. If this is the case, does R-Studio automatically detect if deduplication is being used? Will it then know how to expand the files back to their original state? The data appears to be in good shape on the drive, with the exception that the file database or file table is corrupt. If I could get some guidance on how R-Studio works, I may be able to figure the rest out on my own.
Data-Medics - since my luck hasn't been all that great, I plan to invest into a couple large drives so I can make those disk images. Once the images are created, would I just mount them in Windows and resume recovery attempts much like I've been doing?