I have read how to setup an UNRAID system and have bought 2 10TB drives to start with, one of them is going to be the parity disc.
I have an Ubuntu 16.04 server with 4 existing Ext4 drives and I am looking for the best way to upgrade these drives to the UNRAID Array.
To be clear: I am going to use the same machine, insert the 2 10TB drives and then I want to add the existing drives, while keeping my data. I can copy the data of the existing drives, one at a time, to the free 10 TB drive, after which I can add the drive to the array. Is this possible?
Second question: the machine has 4GB RAM. Shall I replace it? I am planning to run 1 or 2 VMs, not more.