At 9:38 AM -0400 3/20/2009, insightinmind wrote:
>On Mar 20, 2009, at 6:36 AM, Aaron wrote:
> > What about "SMART" ("S.M.A.R.T.") status and functionality?
>> Shouldn't the drive's built-in SMART routines map out bad blocks?
>> If they do, will the Surface Scan still try to read those blocks?
>
>AFAIK, original S.M.A.R.T. Status didn't do any disk corrective
>actions: only measures exceeding certain values.
>
>See: http://en.wikipedia.org/wiki/S.M.A.R.T.
>
>Looks like newer technologies may also try to do this corrective
>action you talk about.
SMART is a *monitoring* mechanism, to alert (someone) when things
start to go south. It has nothing to do with actual corrective
measures, such as bad block replacements -- which are handled by the
hardware controllers these days.
>I always thought (Re)Formatting a drive, zeroing out data, did the
>bad sector mapping out, but only during the formatting process.
That's re-initializing a drive. You cannot reformat modern drives.
The process of zeroing it -- writing zeros to each sector on the
drive causes the hardware's bad block replacement mechanism to
trigger as needed.
- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth
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