On Apr 15, 2005, at 11:58 AM, Joshua D. Drake wrote:

ALL disks have bad blocks, even when you receive them. you honestly think that these large disks made today (18+ GB is the smallest now) that there are no defects on the surfaces?

That is correct. It is just that the HD makers will mark the bad blocks so that the OS knows not to use them. You can also run the bad blocks command to try and find new bad blocks.


my point was that you cannot assume an linear correlation between block number and physical location, since the bad blocks will be mapped all over the place.

Vivek Khera, Ph.D.
+1-301-869-4449 x806


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