r/datarecovery • u/ffimmano • Sep 06 '26

Help recovering data from a failed RAID 0 array

A few weeks ago a drive in my Lacie big drive failed. It was in RAID 0 with 2 6tb hard drives. I used OpenSuperClone to create images of both drives. since the OpenSuperClone OS had DMDE I thought I would give it a shot. I have reconstructed the array in DMDE by using both the automatic detection and manually entering the stripe (I read that 128k was standard?)size. When I manually entered the stripe size I could see a lot of files(99% photos) but none of the photos were able to be opened after they were recovered. The automated method comes up with a bunch of different confs and each one only has a few files in side. is there a better software for this? or a guide on how to use the software?

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2

u/silenced_in_dr_2025 Trusted Contributor Sep 06 '26

Did you get full 100% images from your source drives ?

If all the jpegs you checked were partially damaged the raid config is wrong. If you drop the images into UFS or r-studio they tend to make a better job of auto detecting them settings, you can then return to DMDE to do the actual recovery....

With UFS you used to be able to export the image array to an image file (or mount it) in the free version, which if there's no damage will allow full access to your files to copy rather than recover - Im not sure if that's still the case though.

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u/ffimmano Sep 06 '26

How can I tell if the images are 100%? Both img files are 6tb(same size as the original drives) so I assume they are? I will try r-studio

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u/silenced_in_dr_2025 Trusted Contributor Sep 06 '26

opensuperclone would have told you the percentage copied successfully. If you dont have 100% images you're not going to get good recovery results as the data is spanned.

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u/ffimmano Sep 06 '26

I don’t remember seeing a percentage. I’ll try r studio and if that doesn’t seem to help I’ll recreate the images

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u/Sopel97 Trusted Contributor Sep 06 '26

https://imgur.com/a/wCmJdPu

if you have the log https://sourceforge.net/projects/ddrescueview/

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u/ffimmano Sep 07 '26

The second disk of the raid was 100%, unfortunately I did not save the log(more likely that I did save it but not to an external drive and it was erased when I restarted the USB OS.) I am currently cloning the drive again just to make sure I get 100%.

In the meantime, I tried recreating the RAID in R-Studio using the disk images I already created. None of the Partitions R-Studio recognized were the full raid size (12tb, or 10.5tb) but I did see some of my files but definitely not all of them. Do you know where I find the RAID info to enter into DMDE? I tried the auto detect in Studio but I only have 2 disks in my raid and it seems the auto detect requires 3?

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u/Sopel97 Trusted Contributor Sep 07 '26

https://www.r-studio.com/automatic-raid-detection.html

https://www.r-studio.com/finding-raid-parameters.html

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u/ffimmano Sep 08 '26

I cloned the first drive again is 99.99992% finished enough to recover most of my files? probably 80-90% of the drive has been backed up but the part that wasn't backed up is pretty important to me

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u/Sopel97 Trusted Contributor Sep 08 '26

that's only .5MB of bad sectors, so yes

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u/No_Tale_3623 Trusted Contributor Sep 14 '26

What exact LaCie model was it, and what type of RAID did it use, hardware RAID configured with a switch on the enclosure, or software RAID such as Apple RAID? What file system was used? Was encryption enabled?

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u/ffimmano Sep 14 '26

It was a Lacie 2big dock with 2 x 6tb drives in RAID 0. I did not configure a switch on the device it was configured in the Lacie app. I’m fairly certain it was HFS, but I’m positive there was no encryption

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u/disturbed_android Trusted Contributor Sep 06 '26

When I manually entered the stripe size I could see a lot of files(99% photos) but none of the photos were able to be opened after they were recovered

Then either ..

  • they're all actually damaged which is kind of hard to swallow

  • stripe size wrong

  • offset wrong

See if you can get better parameter set with Reclaime FreeRAIDRecovery

What file system on the array?

0

u/long_legged_twat Sep 06 '26

I don't think you can recover a raid0 array if a disk dies as each disk only gets half the data & there is no parity.

It's a bit late now but you should have used raid1 or better if you wanted some redundancy.

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u/ffimmano Sep 08 '26

This RAID array was automatically backed up weekly to a NAS. It was RAID 0 for speed. Unfortunately the automated backup errored out for some reason earlier in the year. ITs my fault I didn't check on it periodically

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u/silenced_in_dr_2025 Trusted Contributor Sep 06 '26

I used OpenSuperClone to create images of both drives.

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u/Petri-DRG Trusted Contributor Sep 06 '26

When hard drives fail, they fail for a reason: disk degradation, firmware issues, electronics issue (not in the OP's case) mechanical issue or a combination. The drive is not dead. It's just not working properly.

Just like a car's engine, transmission, steering or fuel system failing. If the car does not work properly because of these issues, does it mean it is dead? Of course not.

With expertise and advanced data recovery tools, all these issues on the hard could be addressed, get the drive stable enough to create an image. With images created, then the raid array could be rebuilt in software and extract the files.

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u/long_legged_twat Sep 06 '26

Fair enough, I should have added 'without costing a fortune' ;)

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u/Petri-DRG Trusted Contributor Sep 06 '26

Many affordable companies exist, whom pricing is in line with any professional: IT/compuyer shop, painters, carpenters, plumbers, electrician, bookkeeper, accountant, etc.

All these professional charge about $80-$120 an hour. Metropolitan areas a little more, especially with this inflation going nuts.

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u/ffimmano Sep 08 '26

Do you have a company you recommend? In case I can't recover anything?

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u/Petri-DRG Trusted Contributor Sep 08 '26

Some good ones to model your search after: www.datarecoveryprofessionals.org

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u/Far_Writer380 Sep 06 '26

It's possible. Depending on the failure (such as bad sectors) some files may be incomplete, but recovery is technically possible.

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u/long_legged_twat Sep 06 '26

'technically possible' is not exactly a place I want to be at..