I currently run two servers: one running Plex and Minecraft on Windows 10 and a one running Pihole, Nextcloud, and Piwigo on a Raspberry Pi 4. I would like to combine these two servers into a single machine with a Core i5-3450. I'm considering UnRAID and another piece of software. I'm leaning towards UnRAID since it seems the installation of dockers is more convenient than the other software and requires less work in pre-configuration (UnRAID seems to auto-populate a lot of the settings on its own.)
That brings me to my question. The Plex server is set up as a RAID in Windows with 2 8TB drives, both formatted in NTFS. I know when I bring those two drives over they should/need to be re-formatted. The other software would be EXT4 and, I assume, UnRAID too. That said, I don't have additional drives to install prior to the move. My plan for the other software is to format one drive to EXT4 and then move my media collection to it, then format the second drive to EXT4 and add it as a backup drive. I know UnRAID wants a parity drive installed, but I'm wondering if the parity drive can be installed at a later date to ensure I can migrate my media collection first.
That's a lot of additional info for a simple question. :)
Thanks for any insight that can be given.