Running Truenas as a VM in prixmox requires passing through the storage controller and blacklisting it from prixmox, so yes, you likely need the HBA.

Historically NFS and using one service per server was the usual process. “Builds on” means that the newer processes were developments and improvements to older processes. For example NFS was released in the 1980s and Docker in 2013. Obviously the efficiencies in docker and hyperconverged servers are the reason they have taken over most set ups, but it’s not obvious that software such as docker would have come into existence without the original networking processes.

…which is exactly my point. Using a VM or docker to run the relevant programs and using hard links rather than NFS shares is just a more complicated (but more efficient) setup that follows the same logic. It also has a more complicated network setup for VPN use than running a VPN client on an SBC. That’s why an SBC is the easiest way in to the lifestyle, before graduating to the more complicated yet more powerful setups.

A NAS, an SBC eg a raspberry pi, and NFS shares are the basic setup. Everything else essentially builds on this.

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Dissertation title: the use of self hosted technological solutions for stress management in off duty nursing staff

Ie why torrenting media is the only way for poorly paid nurses is a sign of the breakdown in the social contract

Or, and this is one I’ve been thinking about, The use of patient data in health organisation owned AI systems and consent: What happens when children say no

Get a used adaptec arc 82885T which as an expander card. It only needs molex to power it, and it allows the HBA to connect to up to several hundred data drives (HBA to expander to HDD). The documentation is straightforward to understand.

An example: https://ebay.us/m/SYvAxO

Do not use a raid controller with Truenas. Use a HBA such as an LSI 9300 or 9207 (old but fine for HDD). Truemas manages the drive itself and any barrier to that (like device managed SMR drives and Rains controllers) means Truenas does not know where the data is, and you are likely to get data corruption at some point.

Ditto.

…it isn’t down for me…?

Alternative option: Truenas Scale. Supermicro motherboard. AMD Epyc (used) for lots of PCIE lanes. LSI 9300 and AEC 82885 expander. 16TB+ drives. Rack mount, with SAS back planea. RaidZ2 minimum. Special vdev, NVMe drives and dedicated apps and VM storage, don’t be afraid of a converged solution.

And fans. Lots of fans.