Do I have this right? I want to build a nas to store my digital library and stream it to my and my family's devices. Currently relying on 5 external 2.5" drives and windows media share.
However I can't outright purchase something like a Synology nas due to cost. I have my old PC collecting dust. Amd fx 4100 Radeon 7700hd and 8 gb of ddr3 ram.
Here is the plan. Undevolt the fx4100 to the lowest it can go. Diy mod my Asus Vento a8 PC case for cooling and dust prevention. Buy a 16-20 TB drive and start the nas. Once I can afford a second drive i plan on using them in raid 1. Once a 3rd drive is added I want to use them in raid 5. Over all I want to end up with 40-60tb of useable storage with some redundancy and keep the external 2.5" drives for backups.
From what I can gather, truenas won't let me just add drives later on down the line. Is unRAID my only option if I want to start with the bare minimum and expand later on as I can afford more drives?