Hi. I installed Ubuntu 16.04 LTS on the SSD drive. Now I want to add two HDD disks WD Gold and make RAID1 from them. After this I would like to install all needed software as proftpd (maybe mysql, apache too but not now) on RAID which will be created. Besides I would like to have files transferred via ftp on the RAID matrix not SSD disk which is only for Ubuntu. How to provide above installation and saving files?