Appreciate everyone's input on RAID; don't think I'd heard of any version between 1 and 5.
Someone recommended getting a UPS for power outages; it's my understanding the batteries in them may occasionally need replacing over time. I don't know just which models support that well, how much it costs, how long the interval is likely to be before that's needed or how often people just buy a new one instead. Another of those 'wander off into the weeds' topics, but one that might be helpful if anybody has some insight. UGreen makes one for its NAS; there are some brands I don't know the relative merits of (I'd Google reviews, check Wirecutter, etc.).
I'm told lower capacity HDDs are quieter than the really big ones, but what about this - if someone had 2 12-terabyte HDDs and another had 4 6-terabyte HDDs, which would be noisier? Of course, the 1st would probably be in RAID 1 with 12 terabytes usable space, the later RAID 5 with 18-terabytes usable space.
How noisy a NAS with HDDs would be was something I couldn't get a good feel for.
Someone recommended getting a UPS for power outages; it's my understanding the batteries in them may occasionally need replacing over time. I don't know just which models support that well, how much it costs, how long the interval is likely to be before that's needed or how often people just buy a new one instead. Another of those 'wander off into the weeds' topics, but one that might be helpful if anybody has some insight. UGreen makes one for its NAS; there are some brands I don't know the relative merits of (I'd Google reviews, check Wirecutter, etc.).
Someone mentioned they stopped doing that on HDDs; if I understood correctly, they may still do it on NVMe's (check if that's important).Also worth noting (didn’t see it or may have missed it) Synology kicks you to their drives on their newer models whereas UGREEN doesn’t.
I hope people who went the DIY will post details of their setups and what the learning curve was like. It feels odd discussing it in Mac forum, since Macs are famous in part for intuitive ease-of-use and NAS are...perhaps I might say 'diamonds in the rough,' in that you have to do some 'mining' to get into it?I use openZFS on my raid - the usual learn the open source approach and modify to suit your needs, I think your approach is less work than the openZFS approach
The noise thing is hard to convey even in YouTube reviews, to the point I've seen NASCompares use an instrument to measure decibels in a review.As for Thunderbolt, I couldn't imagine having a NAS in the same room as me; they are noisy! I keep mine in the storage area of the basement.
I'm told lower capacity HDDs are quieter than the really big ones, but what about this - if someone had 2 12-terabyte HDDs and another had 4 6-terabyte HDDs, which would be noisier? Of course, the 1st would probably be in RAID 1 with 12 terabytes usable space, the later RAID 5 with 18-terabytes usable space.
Are they quiet like in would be no bother sitting beside your Mac and display, or more like okay sitting elsewhere in the room?The discs in the QNAP are Western Digital RED so they are quiet in a home environment and built to run continuously for very long periods - 1703 days of being powered on according to the current stats and no abnormal sectors.
How noisy a NAS with HDDs would be was something I couldn't get a good feel for.