I have a physical server (DELL, document number: 1) configured with the following RAID setups:- 
RAID 1 with a 479GB SSD- 
RAID 1 with a 279GB HDD- 
RAID 5 with 1.60TB HDD
I plan to deploy Proxmox on this server, using the ext4 file system. 
The operating system will be installed on the 479GB...