HDD With Bad Sectors

Wandyer Silva

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Apr 24, 2015
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4,510
I have a 1TB Samsung M3 Portable External HDD (just 1 partition with very important files), have been using it for over a year without issues. It did recieve a few bumps and falls, but nothing presented any problems, until it's last fall (which wasn't that physically bad and it wasn't on). It worked when I plugged it in at first on a Linux machine but then had to copy a file from another Windows machine and when I plugged it in on there, it lit up and started spinning but nothing showed up, a "You need to formated the disc to able to use it" (something like that) appeared. So I quickly took it home to find out that it wouldn't appear on any computer or any O.S.

First thing I tried: testdisk. -- Went to the Advanced options and it showed that the Boot Sector and the Backup where both OK but the MFT Repair option gave an error of "The Filesystem seems damaged" and not been able to list any files either using 'p'.

I then did a quick search on the Analyze and it showed up 2 partitions, which both had the same start sector, I went on and wrote those partitions to the disc (I know it was stupid, but nothing actually changed, problem was still the same).

Last night I left Disk Drill on Mac running to see if it could find any files, and it did, it found quite alot, but I don't want to recover using this Software because it can't see the file structure, and about 950GB of mixed files in different directories would be a pain to have them in folders with just their file types.

GetDataBack with a quick search did find 2 directories and only about 8 files, which gave me a hope that a deeper search could actually give a better result. So, I know that somehow I can retrieve most of my files, the fact that it is a 1TB, it takes a while for me to keep trying diferent software and I'm tired of looking around the internet for solutions.

BIGGEST PROBLEM: I discovered that the disc has some bad sectors, quite a lot of them actually, and I know that it's quite impossible to retrieve files from these sectors.There are quite a lot of them at the begining of the disc and thats why most software take a while at first or usually just crash when I try to do analyse anything on this disc.

I know that I can't use this HDD anymore, thats why I am going to buy another one with the exact size so I can try and recover/clone later on.


But I want you guys to help me. What exactly should I do next? Leave GetDataBack NTFS over night? Wait for the new HDD and clone first? Try to fix/avoid these sectors manually?

I'm blind and desperate looking for solutions, and I don't want to make anymore mistakes.



Attached screenshot of the current proccess of the HD Tune Error Scan and the list of bad sectors it found so far.

http://s2.postimg.org/ocl7aashl/hd_tune.png
http://s22.postimg.org/60fsraggh/hd_tune_health.png
http://pastebin.ca/2980609
 
Solution
IMHO the best approach would be to clone your drive, sector by sector, and then work on the clone. Ddrescue (Linux) would be the best freeware cloning tool since it keeps a log and can resume after an interruption. It also understands how to work around bad sectors. It is a multipass cloning tool -- it clones the easy sectors on the first pass and attempts the more difficult ones on subsequent passes.

Here are some tutorials:

http://www.hddoracle.com/viewtopic.php?f=172&t=1173&p=5278
http://www.hddoracle.com/viewtopic.php?f=117&t=1160&p=5224

Ubuntu Rescue Remix:
http://ubuntu-rescue-remix.org/

Install Ubuntu Rescue Remix to a Flash Drive:
http://www.pendrivelinux.com/install-ubuntu-rescue-remix-to-a-flash-drive/

Clone a failing...
IMHO the best approach would be to clone your drive, sector by sector, and then work on the clone. Ddrescue (Linux) would be the best freeware cloning tool since it keeps a log and can resume after an interruption. It also understands how to work around bad sectors. It is a multipass cloning tool -- it clones the easy sectors on the first pass and attempts the more difficult ones on subsequent passes.

Here are some tutorials:

http://www.hddoracle.com/viewtopic.php?f=172&t=1173&p=5278
http://www.hddoracle.com/viewtopic.php?f=117&t=1160&p=5224

Ubuntu Rescue Remix:
http://ubuntu-rescue-remix.org/

Install Ubuntu Rescue Remix to a Flash Drive:
http://www.pendrivelinux.com/install-ubuntu-rescue-remix-to-a-flash-drive/

Clone a failing Windows hard disk with ddrescue on Ubuntu Rescue Remix:
http://keystoneisit.blogspot.com/2011/08/clone-failing-windows-hard-disk-with.html
 
Solution

Wandyer Silva

Reputable
Apr 24, 2015
4
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4,510


Thanks for the reply.

I left GetDataBack running, from the on-screen progress log it's giving me some hopes. Right now it's "Extracting found MFTs" which I guess is how it will structure the found files on their proper directories (and that's what I really want).

I ordered a new drive, it should arrive on the 29th. If I'm not happy with the results that I get from GetDataBack right now, I will clone and run other scans on the new drive.
 

Wandyer Silva

Reputable
Apr 24, 2015
4
0
4,510
Disc arrive last thursday, it's been almost a week and finally ddrescue has finished. I did not see exactly how many bad sectors it managed to clone.

Right now I will run GetDataBack on the new disc. Will post results later to see if this whole thing was a sucess.