No worries, building your first NAS can be tricky! While I can't vouch for the specific wording of the guide you followed, it's possible UNRAID doesn't see the drives because they need formatting. However, there's a key step before formatting with UNRAID:
Pre-clearing the Drives:
UNRAID recommends a process called pre-clearing to identify any bad sectors on your new drives before adding them to the array. This helps ensure data integrity in the long run.
Here's what you can do:
Don't format the drives yet! Formatting them outside of UNRAID might cause issues.
In UNRAID's interface, look for a section on adding disks or managing storage. It might be called "Main" or "Array Operations" depending on your version.
Locate your new drives and choose the option to "Pre-clear" them. This process can take several hours per drive.
Once pre-clearing finishes, you should be able to format the drives within UNRAID itself. This formatting process is usually much quicker.
Additional Resources:
UNRAID Pre-clearing Guide:
https://forums.unraid.net/topic/120567-u...the-array/
UNRAID Forums:
https://forums.unraid.net/forum/93-unraid-connect/ (Great community resource for troubleshooting)