Hi All, I have purchased a new 1Tb SSD and I have two unused SATA 2Tb drives, and currently 8Gb RAM (max capacity 32Gb DDR3 1866) I will settle for 24Gb soon. I have two optical drives, I will settle for one. MB = ASRock 890 GM Pro3 5 sata slots Currently the optical drive is in slot one So I will order my installation for the SSD in slot one and the optical in slot 5 slots 2 and 3 are for the 2 x SATA 2Tb drives, slot 4 will be for my old and now full Sata 1 Tb drive.l I will back-up my Thunderbird profile(s) to a USB stick for easy restore when the new system is running. Question - Should I choose Ubuntu 18.04 LTS or install 18.10 which will need an upgrade at the end of July? Question: To set up my SSD for root and the other two drives as RAID 1 mounted as /home, is it simply a matter of choosing btrfs? I haven't built a Ubuntu Server before. Any "gotcha's"? Andrew Greig and thanks very much to Craig Sanders for his consistent support. I think the "scorched earth" approach may fix all of my earlier confusion. If I get stuck in the install I will write from my notebook.