Restore data from Raid 1 on EX2 Ultra

My Cloud OS 5 My Cloud EX
1

I ended up with a drive failure on a raid 1 array. I also forgot the password to access the NAS. So I reset the device, replaced the bad drive, and logged in. IN the raid profile it shows me “One or more raid volumes are degraded” but doesn’t show me the raid under raid volume.

How do I proceed from here? Do I set up the raid mode first? Is there something else I need to do?

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2

okay as long as i understand …

You may need to rebuild the RAID array first but be careful—initializing or setting up RAID again could overwrite data.

Have you checked if the NAS allows rebuilding from the degraded state? If data is inaccessible, NAS data recovery software can help recover lost files before attempting any RAID setup.

hope this may help you :innocent:

3

Rebuilding the RAID array is the plan.. But without the button to do so, the only option seems to be to “Set it up” again. But because the GUI I suspect will just do stuff completely on its own, I hesitate to do so as I don’t want it to re-initialize the drives. I am used to do things on the back end.
Paying for any recovery software in this case is pure stupidity. The NAS should be able to handle this situation easily. That is the whole point of Raid 1. You loose 1 drive, no big deal. No data recovery needed. Carry on with life, replace the bad drive, and rebuild. Unless that second drive dies, all the data is 100% there, nothing need to be recovered. I should need to do nothing special.
The problem is, what I am being shown in tutorials, and what I am being shown on the web interface are different. So the question is how do I properly use the web interface to recover this? Not how do I pay someone/something else to recover this data.

4

It sounds like there’s a mismatch between the tutorial instructions and your web interface.

Consulting the official user manual for your NAS device or reaching out to support to clarify the specific steps for recovery on your device’s web interface.

5

May be your NAS shows a degraded RAID 1 array but doesn’t list the RAID volume. This likely happened because of the system reset, which may have affected RAID detection. Since you replaced the bad drive, check if the NAS recognizes both drives.

Log into the NAS and go to Storage Management > RAID Management. If you see an option to Recover or Repair, select it. Don’t initialize or create a new RAID, as that could erase your data.

If there’s no recovery option, check the RAID status using SSH (if supported) with cat /proc/mdstat. This will show whether the RAID is recognized.

If you can still access your data, back it up before making any changes. If the issue persists, let me know your NAS model for more specific steps.