Re: new harddrive with media error

[Alexander Nagel]

Thanks for the input of everybody.
i think the drive is broken and i will return it.

Happy gnu year @ all
Alex


Tejun Heo schrieb:
> Al Viro wrote:
> > From the look of it, I'd say that it's size reported by disk being
> > more than what's accessible.  Take a look at the block numbers...
>
> How so?
>
> ata1.00: ATA-7, max UDMA/133, 976773168 sectors: LBA48 NCQ (depth 0/32)
>
> sda: Current: sense key: Medium Error
>     Additional sense: Unrecovered read error - auto reallocate failed
> end_request: I/O error, dev sda, sector 976751999
> Buffer I/O error on device sda1, logical block 976751936
>
> It seems like a genuine media error to me.  Many drives suffer a number 
> of media errors in its lifetime.  Read errors happen regularly and most 
> such errors are corrected by ECC, but sometimes you're just not lucky 
> enough.  Some of them are real bad sectors while others might be due to 
> degraded record quality even when the sector itself isn't necessary bad. 
>  In most cases, the drive will reallocate the area including the sector 
> when you write to it.
>
> Simply rewriting the affected file should solve the problem.  Examine 
> the result of 'smartctl -d ata -a' just in case.  For data of any 
> importance, it's always wise to use raid 1 or 5 and backup regularly. 
> Both help keeping your data safe in more than one way.  Raid re-sync is 
> an easy way out of partial media failures and backing up not only gives 
> you another copy of the data but gives the drives chance to detect 
> degrading area quickly and reallocate before actual read failures begin 
> to occur.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/