I have WD RED 4 TB drive (WD40EFRX), Intel i5-7500, 32 GB Ram DDR4 non-ECC and 250GB Samsung EVO SSD and ran proxmox. All was fine until i started worrying about the data, because the data i have in the Red is priceless to me and apart from that i need to be careful with my actions, i also want another layer of security which unraid offers ( parity ) in case drive fails and can expand easily. I will also have regular backups with rsync to other drive only for the very important data.
Overall, I liked the docker containers over LXC ( i didn't liked the header image of unRAID looked unprofessional and was a bit weird but get used to it and planned everything) much easier to build my own containers for the things i run. I will buy another 4TB RED for parity too.
So for now i have 4 questions.
1.) WD Red currently has 200GB of data and i will buy another one for parity. What about the 200 GB of data? Is there a way to keep them / merge into the array while i install/configure unRAID or any other way?
2.) I read about SSD cache which i want to have too. But i also want to run the Plex docker container and any other dockers and vms on SSD. Should i get another SSD or one is enough? Is it easy to use one SSD as cache and have dockers and vms too?
3.) I believe that 4 TB is enough for me, but in any case i want 8 TB or 12 TB what will be my way to go? I buy another 4 TB drive for 8 TB or 2 x 4 TB for 12 TB? Will that work?
4.) I need separate local IPs for both vms and dockers. Is it easy to make use of my routers DHCP?
Thank you.