I suddenly lost nearly 1 TB data in my MyBook Studio II (RAID 1) after I upgraded to OSX Maverick. The data is VERY IMPORTANT to me, including thousands of photos and my Ph.D. research. This is ironic that the two hard drives are both healthy but ALL the data is GONE.
After I lost the data, I started googling about this issue, and found out that this issue had been reported a few weeks ago. WD should warn their customers once this issue was reported, but WD did not. They should report this issue on the most popular websites, like Engadget, CNET, and even report it on news. Not just sending a email to the registered customers. I was not a registered customer, and so I did not get any notice. Even today, most of WD users don't know this issue, and the number of victims is still increasing.
I am not interested in knowing the technical problem that causes this issue. The only thing I care is how I can recover my data. I just bought a Seagate external hard drive and Disk Drill Pro to rescue my data. Fortunately, the data is still there and I am able to recover it, however the filename and directory will be disordered. Some files are useless if I don't know their original filenames and directories.
I am still waiting for the offical response from WD telling us what we have to do in this situation. I was wondering if WD is working on the solution that can recover the data including the filename and directory, or WD is doing nothing, and we should rescue the data by ourself.