Ok, some HDD in my server starts to make me worried that one would fail (all HDD in there are 4TB from 2013 or 2014), I have around 3.3TB of data to backup ASAP, the rest, I can survive without it, now what HDD would be the best, I prefer to use an internal drive and stick it into an external usb case, makes it easier to replace whenever the HDD or the case decides to stop working compared to all in one external HDD with soldered boards and not connector to try to recover the data.
I see some Seagate Barracuda 4TB at 129,99$ on amazon canada (yeah sadly I'm in Canada so need to purchase in CAD which makes prices way much higher sadly) I also see a Seagate Barracuda 8TB drive for 184,99$, but I'm scared to death to loose all the data that would be on it, are 8TB drives reliable now, lets say I want to recover this data in 7 yrs from now, I don't also get it why they are clocked at 5400rpm, I could swear its only good for laptops at that low rpm.