I have a Pegasus R4 with 4x 3TB disks in Raid5 . So total capacity 9TB. I use the external drive to save all my photos (8TB). Yesterday I have accidentaly managed to create image of my local disk (500GB) on the Pegasus external drive, which resulted in wiping it all clean and copying the local drive there. So now the pegasus have 8,5TB free, and all of my 8TB data are gone.
I'd like to ask here, what would be the best practice to recover the lost data?
Thank you very much.