Thanks for that. I read it allready yesterday. I just wasn't shure about the order of the disk. But now I think it works for me a while. I just have data about 1 TB at the moment.
And yes I know, parity is NOT A BACKUP. For backup I have other solutions. Unraid is just the datapool and virtualization server for some things. And dockers works realy like a charm in unRaid
thx, bye