ReadyNAS NV+ Won't Boot

You could attempt clone to one of the drives to your replacement.  You'd need a tool that does sector by sector copy.

https://www.easeus.com/disk-copy/feature.htm is one option.

I didn't understand that??  Which drive would I try to clone?  One that failed the Short DST test?  Is that possible?  Seems like sector by sector copy would have errors. What am I missing?  

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OldManAndHisNAS wrote:

I didn't understand that??  Which drive would I try to clone?  One that failed the Short DST test?  Is that possible?  Seems like sector by sector copy would have errors. What am I missing?  

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You would clone one of the failed drives to the new one.

There likely would be some errors,  but the array could possibly be mounted.  There could be some data corruption, but likely some files could be extracted.

I don't need to clone both?  Only one?  How many would I put back in the NAS?  

Can I clone a 750gb drive to a 1tb drive?

The NAS should boot with only three disks, so you only need to clone one.   Probably you should clone the one that got further into the test.

Your other option is data recovery (either software, or using a service).

Either way, it's hard to say how much can be recovered.

So after I clone one, do I put all four back into the NAS or only three?

Is there any Seagate repair utility I can run on the hard drive?

What data recovery service would you recommend?

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OldManAndHisNAS wrote:

So after I clone one, do I put all four back into the NAS or only three?

 

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Only the three working drives.

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OldManAndHisNAS wrote:

 

Is there any Seagate repair utility I can run on the hard drive?

 

 

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Only Seatools.  All it could possibly do is reallocate bad sectors, so it wouldn't actually repair damage.

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OldManAndHisNAS wrote:

 

What data recovery service would you recommend?

 

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I've never needed one, so I can't really recommend any.   Here are two I know about (but never have used).:

Netgear:  Normally done remotely, but the lack of tech support mode in your old firmware likely  means that you'd need to ship them your disks.  Netgear charges whether they can recovery anything or not.  https://kb.netgear.com/69/ReadyNAS-Data-Recovery-Diagnostics-Scope-of-Service

Seagate: You'd need to ship all four disks for sure. They don't charge if they can't recover anything:  https://www.seagate.com/gb/en/services-software/recover/in-lab-recovery/

If you are interested in data recovery, you should stop troubleshooting now (e.g., don't try the cloning).   Doing more risks doing more damage, which makes recovery harder.

Both of my drives that FAIL the SeaTools ShortDST test PASS the Short Generic test.  On drive 4 is started to run the Long Generic test but realized that is was going to take 4+ hours so I aborted at 6%.  When I went back and reran the ShortDST test on that drive it PASSED.  I don't think the SeaTools Long Generic test does anything other than try to read each sector so I am not sure why it would have that impact.

Drive 2 will pass the Short Generic but will still not pass ShortDST.  Still fails at 10%.  I did not try the Long Generic test on that drive.

Anyway, I though I might try putting drives 1, 3, and 4 back in the NAS as those all now have PASS on the DST tests.  What should I do with slot 2?  If it is now the only bad drive, will the NAS boot?  Will it tell me to replace drive 2?

Is there anything special I need to do with the new replacement 750GB Seagate Barracuda drive I bought as a replacement?  Do I need to format it in any way before installing it in the NAS?