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Advice for Data Recovery with ddrescue

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I'm currently in the process of running ddrescue on my newest drive to attempt to recover what I can before I RMA it. This is my fault for not having a parity drive, so I understand that. The data is all non-personal media, so it isn't anything critical.

However, I noticed that the drive is progressing in the wrong direction fairly rapidly, and I wanted to see if anyone could help me understand if I am taking the right approach here or if anyone has any advice.

I have been running ddrescue for around 18 hours now. I'll post a screenshot with the current statistics. I understand ddrescue is going to take a long time on a 24tb drive, but what I am concerned about is that the failing drive has gone from offline uncorrectable and pending sectors of 900 something to over 7000 in that time. Is this normal/inevitable? Am I still doing the best thing I can, given the situation?

ddrescue status2025-01-23_09-19-44.png

Solved by JorgeB

  • Author

Understood, I apologize for not attaching them initially. I didn't know if they would be helpful in this situation, but I will make sure to always include them, in the future.

barnicus-diagnostics-20250123-0931.zip

  • Community Expert
  • Solution
48 minutes ago, Zacaronii said:

but what I am concerned about is that the failing drive has gone from offline uncorrectable and pending sectors of 900 something to over 7000 in that time. Is this normal/inevitable?

It can be, it will depend on the damage, only option is to wait to see if/what it can recover, but looks like the disk is in a very bad state.

  • Author

I appreciate the prompt response, Jorge. I just wanted validation that I was doing the right thing. I guess this is a hard lesson learned.

I have two new drives ready to slot in there for parity once I am done with this recovery attempt. Another thing I realized is that I could have potentially caught the issues with this drive sooner, if I had taken the time to run a preclear. Although, even in that situation, I would have still saved myself a lot of headache if I at least had 1 parity drive. -_-

  • Community Expert
21 hours ago, Zacaronii said:

I could have potentially caught the issues with this drive sooner

Do you have Notifications setup to alert you by email or other agent as soon as a problem is detected?

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