Bad idea to copy a semi broken harddrive's contents onto a new one?

Normalcey

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Feb 17, 2010
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My harddrive atm has bad sectors, and a good portion is unusable (about 30%) There are no other issues (viruses etc) other than that. Would it be a bad idea to basically clone all that data and put it on a new harddrive?
 
Solution
well, i would copy files just a few at a time. copying them all at once might take longer.
i would start at the most important ones, then work my way down. chances are you will not be able to copy a good amount of files, 30% is pretty big
well, i would copy files just a few at a time. copying them all at once might take longer.
i would start at the most important ones, then work my way down. chances are you will not be able to copy a good amount of files, 30% is pretty big
 
Solution
G

Guest

Guest
I agree with Cons29, copy the files and don't try to clone.
I doubt a clone would work anyway as it probably wouldn't be able to read some of the drive, and you could go to a lot of trouble only to find the clone process failing.
 
Ddrescue can perform a sector-by-sector clone of a drive with bad sectors. It maintains a log so that it can resume after an interruption. Ddrescue clones the easy sectors on the first pass and then tries for the more difficult ones on subsequent passes.

Obviously ddrescue won't be able to read any sector that is truly bad, but you could try different physical orientations of your drive (vertical, upside down, on end), and you could try cooling the HDD with a fan.

If it is a late model WD or Seagate drive, then try cleaning the oxidisation off the head contacts on the PCB by gently rubbing them with a soft white pencil eraser.

ALternatively, if you wish to recover individual files, then try Bad Block Copy for Windows:

http://alter.org.ua/soft/win/bb_recover/