instaling Debian 10 to 3 hdds as one big system

Hi all, I have computer with 3 hdds. One is ssd, 2 others are hdd. I want to install Debian 10 to all 3 disks as one big system. What to use, raid or lvm? I found an issue with lvm, when I want to create lvm, it shows you can use $minsize and $maxsize, but all disks are 512, Gb. I want to star

installing Debian 10 to 3 hdds as one big system

Hi all, because I was not registered when I sent this message here at the first time, I am sending it again. I have computer with 3 hdds. One is ssd, 2 others are hdd. I want to install Debian 10 to all 3 disks as one big system. What to use, raid or lvm? I found an issue with lvm, when I wa