**Update**
I have discovered that the RAID is intact and the helios4 seems fine. The power brick however is only outputting 8v instead of 12v. Does anyone know where I could purchase a replacement?
Hello,
I recently had my Helios4 NAS crash and had to reinstall Armbian and OMV. My pre-existing RAID array does not show up and after reading through the forums I discovered that all four sata links are down.
I only posted the end of dmesg as the full output was over the message size limit
I tried using omv-extras as suggested here: [SOLVED]2 of the hard disks are not dectected, but that didn't help.
I re-seated all of the connectors and ran quick SMART tests on all four WD RED 8TB drives, which they passed.
OMV 4.1.32-1 (Arrakis)
Debian Stretch with Armbian Linux 4.19.63-mvebu
Thanks