First off, I'd normally ask this question on a datahoarding forum, but this one is way more active than those and I'm sure there's considerable overlap.

So I have a Synology DS218+ that I got in 2020. So it's a 6 year old model by now but only 4 into its service. There's absolutely no reason to believe it'll start failing anytime soon, and it's completely reliable. I'm just succession planning.

I'm looking forward to my next NAS, wondering if I should get the new version of the same model again (whenever that is) or expand to a 4 bay.

The drives are 14 TB shucked easy stores, for what it's worth, and not even half full.

What are your thoughts?