> On Aug 16, 2016, at 10:02 AM, Pen Helm <[email protected]> wrote: > > I thought the hard drive's firmware mapped out the bad blocks invisibly, and > if you seeing bad blocks on the drive, it means the drive has already used up > all its spare blocks and is failing. True?
My understanding is the SMART tests built into modern drives map out bad blocks. Every hard drive has a number of extra blocks it uses to replace bad ones. It gives a SMART error when the supply of spare blocks is depleted. L^2
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