I want to know if I have badblocks on my sdb5 HDD.

[Frederic Schaer]

Hi,

I'm coming after the battle, but if smart reports there are bad blocks
(using the previous given smartctl -a /dev/sdXX command), given the
price of hard drives and given the price of your own data integrity
(your data has no price, does it ?), I would directly go buy a new disk...

Regards

Derek Broughton a écrit :
> Steven Vollom wrote:
>
>   
>> I did the following in the Shell:
>>
>> steven at Studio25:~$ e2fsck -c
>> Usage: e2fsck [-panyrcdfvstDFSV] [-b superblock] [-B blocksize]
>>                 [-I inode_buffer_blocks] [-P process_inode_size]
>>                 [-l|-L bad_blocks_file] [-C fd] [-j external_journal]
>>                 [-E extended-options] device
>>     
>
> In my experience it's been practically impossible to tell if you have 
> bad blocks on the drive until it's at imminent risk of failure for 
> _many_ years now.
>
> This is because drives themselves remap bad blocks, and the OS - be it 
> Linux, Windows or OSX never gets to see them.  It's only when the 
> drive's internal badblock list is full that the OS will start to see and 
> map bad blocks.  By this time, the drive is pretty near to toast.
>
>   
>> If there are badblocks and they are identified on the HDD, can the HDD
>> still be used?  If I format the HDD, will the badblocks be wiped and
>> usable after format?  TIA.
>>     
>
> NO!  Bad blocks are BAD.  You map them out because they can NEVER be trusted.
>