[TriLUG] dying disk with LBA error but no reallocated sectors

[Joseph Mack NA3T via TriLUG]

On Thu, 16 Apr 2015, Bill Farrow via TriLUG wrote:

> On Thu, Apr 16, 2015 at 8:04 AM, Joseph Mack NA3T via TriLUG
> <trilug at trilug.org> wrote:
>> Why isn't an LBA error correctable by reallocating a sector?
>
> Joe,
> You may have to force the relocation process by writing to the bad sector.
>  http://www.sj-vs.net/forcing-a-hard-disk-to-reallocate-bad-sectors/

fabulous. Let me give it a go. I didn't realise that you had to write in order 
to reallocate a bad sector.

I have a monthly cron job to fill my disk partitions with zeroes (dd 
if=/dev/zero of=zero.zero; rm zero.zero). I have noticed that sometimes I'll get 
a reallocated sector out of it. I assumed this was because I was accessing a 
sector that hadn't been accessed for a while. I didn't realise it was the write 
that was forcing the reallocation.

Thanks
Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) austintek (dot) com - azimuthal equidistant
map generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!