It seems weirdly difficult to find a good solution to attach HDDs to my pi. Best case would be for me a enclosure with small power supply, space for my pi, and at least 2 bays for HDDs, rather 4. All that for under 100€ of cause :D
I could not really find cheap hhd enclosures that connect via usb. Any recommendations? I don’t really want to use HDD toasters, they feel not permanent enough for a Nas. I could also not find sata to usb hats for the pi that are available right now
For a NAS, you’re usually concerned with capacity first. And you can’t buy a 20TB m2.
M2 isn’t much more expensive than HDDs anymore. It used to be five times times the cost. Now maybe 1.5 to 2 times. And they require a lot less space and no dedicated backplane with seperate power.
Also you need redundancy. A 20TB hdd is very expensive and usually very overkill. Rebuilding them takes very long if you ever have corruption issues, along with other problems.
It’s better to have three smaller drives than a single 20TB one.
Unless you’re running an actual datacenter with cooling and big rack space, m.2 is a likely more worth it these days for a small home NAS.