How can I restore NAS-Datas?

Hi to everybody!
I’m a newbe in this forum and I need your help.
Until now I operate my MyCloude EX2 Ultra with 2x 3TB in Raid 1.
While this memory capacity gets too small, I wanted to exchange the two FPs for larger ones. By doing this, I’ve done a big mistake!
After I swapped a disk and did a drive test, it was shown that the raid status is ‘degraded’ and I mistakenly formatted the drive.
I.e. now I have one disk left with the original data and a completely reformatted NAS.
How do I get my old data back into the system.
It would be great if someone could give me relevant information about what I have to do.
Thanks in advance
Hans

You can try to remove the two drives from the NAS that was reformat and insert only the single disk with the original data. Power back on your unit and login. There might be an option to use the migrate RAID and then insert another disk to REBUILD the RAID.

@jebusx
Thx for your advise. I’ve tried to do so.
If I put in the single drive, the NAS-System can’t find datas.
Anyway, I’ve put also in a secound, empty drive and give time to the system to rebuild.
Nothing happens :frowning: and the system shows the hole drives as empty.
When I analyze the single drive (that one with the raid-datas) there where shown a lot of datas on it, but I can’t read them.