Re: How to fix Current_Pending_Sector?

[Greg Freemyer <greg.freemyer@gmail.com>]

On Thu, Mar 18, 2010 at 3:37 PM, David Rees <drees76@gmail.com> wrote:
> On Mon, Mar 15, 2010 at 4:20 AM, Iain Rauch
> <groups@email.iain.rauch.co.uk> wrote:
>> The 'Current_Pending_Sector' was still 1, so I dd zero onto the whole drive.
>> I guess I could have just done part of it, but I suppose that verified the
>> whole drive 'works'. It only took ~5 hours. Funnily enough this did fix the
>> Current_pending_sectors count back to zero. Still no error reports in the
>> SMART data, and 'Reallocated_Event_Count' didn't go up - shouldn't that have
>> gone up to one?
>
> No - the drive was able to successfully write to the sector it was
> unable to read from.  If the write had failed, it would have
> reallocated the sector.
>
> -Dave

Dave,

Most sector writes are blind (ie. non-verified).

Is your theory that if the sector is marked as a Pending_Bad_Sector a
write is done, but it is verified, and a reallocate only occurs if the
verify fails?

I've never heard that theory, but it makes great sense.

Greg
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