Recovering/reallocating hard drive with bad sectors?

ScatteredThunder · 06-18-2021, 10:26 AM

Okay.

I've been trying to revive a bad 3TB hard drive from Seagate with allegdly 20 bad blocks using e2fsck:

Code:

sudo e2fsck -c /dev/sdb1

https://ibb.co/GR7pzdc

What can you say about the health of this hard drive from the screenshot above?

Does that mean the 20 bad blocks were reallocated appropriately so that they will not be used by the OS?

pan64 · 06-18-2021, 11:03 AM

I would rather buy a new drive, copy content - as long as you can - and forget this one.

ScatteredThunder · 06-18-2021, 11:20 AM

Oops, sorry wrong screenshot.

The following screenshot is the correct one:

https://ibb.co/VqMy7nc

pan64 · 06-18-2021, 11:25 AM

yes, theoretically that 20 bad blocks were reallocated and will not be used any more. But you will never know if there will be another 20 bad blocks or 200 or 2000....
That drive is not 100% reliable any more (at least what I think).

ScatteredThunder · 06-18-2021, 11:48 AM

Thank you!

But like does that mean only the current OS (in this case Ubuntu) is set not to use those 20 bad blocks or any other OS will do the same too?

I guess what I'm trying to ask is did e2fsck apply a modification on a OS level or in the hard drive itself?

business_kid · 06-18-2021, 11:51 AM

FYI, there appear to be two threads already by the same OP on this same dud drive
https://www.linuxquestions.org/quest...ck-4175695779/

And

https://www.linuxquestions.org/quest...sk-4175696434/

ScatteredThunder · 06-18-2021, 11:56 AM

Quote:

Originally Posted by business_kid

FYI, there appear to be two threads already by the same OP on this same dud drive
https://www.linuxquestions.org/quest...ck-4175695779/

And

https://www.linuxquestions.org/quest...sk-4175696434/

Of course there are.

These are different subjects: one is recovering data and the other is how to reallocate bad sectors.

If you want to help, feel free to contribute to the subject.

pan64 · 06-18-2021, 11:58 AM

Quote:

Originally Posted by ScatteredThunder

Thank you!

But like does that mean only the current OS (in this case Ubuntu) is set not to use those 20 bad blocks or any other OS will do the same too?

I guess what I'm trying to ask is did e2fsck apply a modification on a OS level or in the hard drive itself?

it was set inside the hard drive, not on OS level.

Timothy Miller · 06-18-2021, 12:01 PM

Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread is being closed because it is a duplicate. 3 threads that seem to be for the same issue.

https://www.linuxquestions.org/quest...sk-4175696434/

https://www.linuxquestions.org/quest...ck-4175695779/