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ScottR

macrumors regular
Original poster
May 11, 2007
143
17
I have a 4 TB G-Tech RAID drive attached via FireWire 800. It was formerly a backup drive for photos/videos, moved up to a main drive when the old drive it was backing up failed. Problems got in the way of replacing it....

Anyway, all of a sudden, my files were gone. Just gone. For some reason, the folder hierarchy is still there--every folder, as best I can tell is where it was, but any and all data is gone.

Disk Utility found nothing wrong with the drive; DiskWarrior didn't, either. I booted from another external drive running 10.6.x, no change in what wa(sn't) there, and ran TechTool Pro 5 (I'm running 10.8.3 and don't have a newer version so it ran off the older OS); no help.

I ran Data Rescue for a few days and it seems to have recovered a lot of files--but we're talking almost 3 TB of data, and I shudder at how many months it's going to take me to get it back into a semblence of order, as well as how much I've actually recovered.

The part that makes me hit my forehead is that I ran the Deleted Files function, which scans free space only. I did so because, at the time I ran Data Rescue, there still was data on the drive, about 600 GB of photos/videos. But when it had finished, all THAT was gone, too, and I wonder if I should have done a Deep Scan and missed files as a result.*

But here's the thing: If I do a Get Info on the drive, it says that the capacity is 4TB. But, if I open a Finder window and show the top level (with all of the volumes shown) and use List view, it shows *the drive as being 2.99 TB in size. So... is that data is still there, somehow? I.e., is there anything recoverable in a *useful* form--in the original folders and with the original names, rather than hundreds of thousands of undifferentiated files that DR presumebly found?

Side note, and perhaps a red herring. The drive had been running slowly for a while, though tests didn't show why. The drive had seemed to recover itself, but then got slow again. I downloaded Drive Genius (demo) and tried to run the Benchmark function, only to find that it didn't run in eval mode. At some point, I found that my iMac was running slowly, and I opened Activity Monitor and found an odd process taking up a lot of CPU: dgse. Couldn't figure out what it was,*and Googling didn't reveal anything. So, just in case I had a Trojan, I quit it. It was right after this that I found my data gone. I later tracked the process to Library>Application Support>Drive Genius

Sure seems darned coincidental....
 
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