oh damn i feel your pain, have had issue with my QNAP once and it was a pain to get everything back up. Take your time mate, no hurry. And have a nice weekend 
“Ms B” is just now coming back online.
2x 1TB M.2 RAID - DataVol1
8x 8TB - DataVol2
1x 1TB - DataVol3 (spinner)
1x 512GB - Development SSD
1x 512GB - Primary cache
Worst part was the Synology not being able to source the data to the LAN fast enough. 
Good to hear, hopefully you didnt loose any data.
