I've built a computer to use as a home file server. I will be installing Ubuntu Server. I've put a small SSD and two large HDDs in it. I have no prior experience with Ubuntu (desktop or server). I've watched several videos that walkthrough the server installation and setup process and I've read lots of tutorials explaining it. I'm confident I can get it setup and configured but I want to install the Ubuntu server on the SSD and then use the two HDDs for file storage, preferably in RAID 1.
So how do I set it up so that the OS is on the SSD and all the files are on the HDDs? All the videos/tutorials I've watched/read have just used one drive for the OS AND the file storage.
Any helpful instructions or links would be very much appreciated.