I have two 1TB drives in my box, plus a 2TB USB drive on the desk, for backups.
I generally don’t like to have that much on one spindle but it’s getting less expensive to buy larger drives than smaller ones and I am driven by finances. Or, more accurately, a lack thereof. The reasoning is that a spindle failure takes out a given amount of material (software or data files) so having a smaller spindle means the temporary loss of less material no matter what it is. This is given adequate backups are maintained and being an old mainframer adequate backups are habit..
Edit: Hmmm…yes, a NAS has been a nagging thought lately. The USB drive was supposed to be like that, but it didn’t work with my Netgear Dual Band router as it should have, so I removed it and put it on my desk. EVentually I’ll get a nice NAS box, load it with a few 2TB drives and set up RAID.
Weeelll ... Most NAS boxes are Linux boxen with ... hmmm ... I forget what it is to make it easy to get from the Ethernet port to the drives. (Kendall, help!) With a little diddling and the proper application of arcanage, you may be able to create one to your liking.