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Re: sector sparing and recovery - should I ITP?



On Wed, Oct 03, 2001 at 03:49:53AM +0200, Russell Coker wrote:
> When an IDE or SCSI disk has bad sectors then you can recover data by 
> repeatedly reading it and then writing it back once it's successfully read, 
> when written back it'll end up on a good part of the disk.
> 
> I've written a program to do this and used it to recover data from a hard 
> drive (a drive that's still in service today).
> 
> Should I package this?  A program like this if used by a clueless user can 
> really kill data (think about read and write-back on a mounted file system or 
> swap device and what happens when the race conditions get hit).

Why not add a check to see if its mounted?  More specifically, make sure its
not mounted, or its mounted ro (so that it can still be used on / in single
user mode).

Thanks,

Norbert

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