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Repair CORRUPT ReFS on HDD

Question

Friday, May 10, 2019 6:10 AM

Greetings,

I will get straight to the point:

I don't need a generic support troubleshooting answer, I need someone to answer who actually knows what they are talking about.

I have a brand new 8TB HDD that I foolishly formatted to ReFS, which I used as a backup drive for about a month. About a week ago, suddenly the drive did not respond and took down my entire computer. No problem, I assumed, so I restarted the computer and unfortunately the state remained like that. To this day, the drive is not responsive and is barely recognized as RAW within Windows, as it takes forever for Windows to load the drive. When I try to access the drive (i.e. double clicking on it in the explorer), it loads for ~10 minutes and then says "D:\ is not accessible. The parameter is incorrect.".

As a reasonable first guess, I assumed the drive was at fault. I checked and analyzed the drive fully with the following results:

1. SMART data is absolutely excellent, the HDD is brand new and it has absolutely top notch stats.

2. Not a single bad block on this 8TB large HDD. Not a single one.

3. 100% of the drive is readable without issues on Linux, the only problem is that Microsoft is keeping the source closed, so Linux can't mount a ReFS file system, i.e. the actual data is inaccessible. Thank you.

4. To be a 100% sure that it is not a hardware issue, I cloned the whole 8TB HDD to another brand new 8TB HDD and it shows the exact same symptoms as the """old""" drive.

Ergo, the HDDs are working perfectly fine, but ReFS made more than 6TB of backup data unavailable.

I did a lot of research on ReFS, which lead me to the conclusion that probably an upgrade to a newer ReFS version (that I never requested, because it is done automatically, for whatever reason) could be a very probable cause for this problem.

Seems like ReFS needs its own chkdsk, after all.

Now here is what I need:

I want the data from the disk to be accessible without using a generic recovery tool, as I need the correct file names and corresponding folder structure. Ideally, I would like to copy the data from this HDD to the newer one, formatted as NTFS and then purge ReFS out of my life, forever.

Thank you for any actual help.

P.S.: Where can I find the official changelog for ReFS?

All replies (3)

Monday, May 13, 2019 7:54 AM

When a volume shows up a RAW, it means that for whatever reason, the file system cannot be mounted.  It doesn't have anything to do with Windows detecting the drive.

Boot with an Ubuntu Live disk and then try to access the drive and attempt recovery of the files.

Refer to the following case to check refs disk

https://social.technet.microsoft.com/Forums/ie/en-US/820e4dbf-ef21-413c-894c-54276ffee4f5/how-do-you-check-the-health-of-a-refs-volume?forum=winserverfiles

Regards

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Tuesday, May 14, 2019 1:33 AM

Thank you for your answer.

I am already recovering the files. But this is just a workaround and not a solution. As explained in the OP, I have proof of ReFS being corrupt. The file system. Not the files. The files are perfectly intact and undamaged. Therefore, the link you sent doesn't help much, as there is only optional file integrity verification and no file system corruption check or even repair.

The file system itself is corrupt. ReFS is corrupt.


Monday, June 10, 2019 1:39 AM

Sorry for late reply, what about thing now?

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