Build advice to host TrueNAS Core and Plex

[s1x]

My build started off a as an Unraid server but I'm now reconsidering going back to an earlier idea of running Promox as my hyper visor. Right now I have the CPU/MOBO/RAM and 4x NVME drives. In the coming weeks I plan on purchasing the HBA controller along with 8-12 SAS drives.

I'm looking for advice on how to set this us. Originally under Unraid I was going to have a RAID 10 nvme pool for my appdata, VMs and docker images. Then hosting just the metadata and movies on the main HDD array.

I was going to run Unraid on a USB thumb drive, now with considering Proxmox I will look at purchasing two Samsung PM893 480GB SSDs and setting them up in raid 1.

Should I stick to this idea for TrueNAS? What should I use my 4 nvme drives for? What type of raid setup would best benefit my system?

HW I currently have:

EPYC 7302p
TYAN S8030 (S8030GM4NE-2T)
256GB ECC
ASUS Hyper M.2 X16 PCIe 4.0 X4 Expansion Card
4x SABRENT 2TB Rocket NVMe 2TB

 

[Dunuin]

You could use the NVMe SSDs as VM storage (ZFS might cause massive SSD wear but as far as I see those SSDs warranty isn't limited by TBW or DWPD...so you could just RMA them when they fail) and then PCI passthrough the HBA into an Unraid or TrueNAS VM.