Hi, I use raspberry pi + an external HDD as a nas / home server. I want to expand my storage and also make use of raid 5. I found used QNAP TS-419P with 4 4TB WD Reds for 6500 CZK (~270 USD). I think even for the disks alone, this is a good deal, SMART looks good. The NAS itself - I am not sure about its usability - it is very old, I found reviews from like 2009. I am not going to use any advanced features, I just want to use it as a RAID storage connected to my raspberry pi 5, which handles the services.
I don't want to be cheap, but a 4 disk NAS/DAS with disks would cost me multiple times more than this. What do you think, is is a viable option even today?
PS: I know this setup is not ideal. I would build a full-fledged server myself, but don't have time+space for it yet.