OS reinstallation and secundary RAID1 data recovery

It's possible that the filesystem structure damage doesn't necessarily mean there's damage to the hardware.

In terms of reinstalling Windows Server 2019, as long as you don't format the HD RAID1 drive, your data should still be there and accessible. However, it's always a good idea to back up your data before performing any kind of reinstallation, just to be safe.

As for your hardware profile, it seems like a pretty good setup for running Windows Server 2019 with 2 RAID1 systems. However, it's always a good idea to consult with a managed IT services provider to make sure your hardware is properly configured for your needs. You can check out https://www.nwitservices.com/services/managed-it-services for more information on IT services. Good luck!