Goal: 34TB of usable storage.
This is primarily a file server used to archive my CD, DVD, and DVR media. It filled up and a fan died and it needed an upgrade. The result is this behemoth of storage.
All the media is served via Plex.
Live Storage: Frequently accessed data is on two Raid 5 arrays. One is made up of the 4TB drives, the other the 5TB.
Archived Storage: Infrequently accessed data is stored on the 8TB drives. These things are very slow for writes. I do not recommend these in a raid.
Backups: I have three externals used for backup of the live storage. The archived storages will have such low activity that they should last an eternity.
SSD: Virtual Host.
CPU/RAM/MOBO: So this is left over from my old workstation. It was built for gaming and video editing. The CPU is a beast at Plex transcoding, and I'm happy to have the RAM in a virtual environment.
Edit in regards to costs: The prices that are linked are what I paid new. So the CPU, Mobo, Cooler and RAM are like 6ish years old? (I just looked it up. Purchased 7-28-2009. Maybe I should have named it Methuselah) The WD Reds I've had for a couple years, but the other drives, case, etc are all new.