Banana Pi + HDD == NAS?

Question

Raspberry Pi

I thought about starting a network storage at home in some form. Now Banana PI (analogous to raspberry pi) is at home and acts as a small server for its own needs. The network is gigabit.
I see 3 ways:

1. Buy network storage + disks for it; (the price scares me, plus I want to figure out if I can get the same thing using the available resources)
   
2. Buy an HDD docking station with an Ethernet connection (as I understand it, unlike network storage, this option has lower performance. Are there any other nuances regarding this option?)
   
3. Connect HDD to BananaPi (more details below)
   

BananaPi has a SATA connector, so I thought to connect through it. There are more problems with powering the hard drive, I considered the following solutions to this problem:
- use a 220v adapter -> sata power supply. The reliability of this device, in particular fire safety, is of concern, since all this should work 24/7 and it is desirable that the disk does not kill yet;
- use a computer power supply. Then, in theory, bananaPi can also be powered from it. Concerned about pitfalls, such as: will the power supply work at all in such a scheme? Wouldn't such use of the PSU have a detrimental effect on anything?
I would like to hear your opinion. Does it make sense to try to make storage based on BananaPi? What will be its performance? What can you recommend? Ideally, of course, I would like to rest against the speed of the disk.

Answer 1

Option 1 - cool, but, dog, expensive.
Option 2 - actually == first. In any case, this turns out to be a NAS, with 1 disk it’s not very reliable (I somehow lost my head)
Option 3 - the essence is the same as the second, but here you are free to choose both software and disk, etc.
You can use a computer PSU, no problem. True, this design will be far from the ideals of beauty. Will work - proof

Answer 2

1 option. + Cool, ready-made solution - quickly and easily set up and forgot. - Price, limited functionality, dependence on the manufacturer.
Option 2. + Cheap, almost no configuration required. - You can’t configure, you can’t expand, and the like - it’s just a flash drive with an ethernet input
Option 3 + cheap, flexible, independent of anyone (put whatever your heart desires on Linux). - only one sata, rather weak percent
4 option - router + usb-hdd (DAS) - almost completely repeats option 2 - just access to the disk with minimal rights
5 variant of mini-itx board with built-in processor + flexibility, x86 architecture, >2 SATA, normal RAM, the ability to assemble a full-fledged server, and not just a file cleaner. - Troch increased power consumption compared to the rest, you need to get fooled about cooling and noise.
For option 3. Connecting a banana and one broom to a computer PSU is "from a cannon to sparrows", because. PSUs are designed to power a voracious processor and video cards, and everything else hangs on them for the company, just the opposite, you can power a banana from a power adapter to a sat and all the rules will work (you can disassemble the adapter and evaluate the reliability of its circuit)
For option 5. All-in-one motherboards, as it were, were developed for such tasks, and half of them have built-in power supplies + an adapter like a laptop. However, similar ones are used in factory NASes, only filed by the manufacturer for a specific model.