Thank you @redvli. More for me to consider before purchasing hardwareIf max 2TB unique data, I would say bye bye to proprietary Synology SHR and use 5 2TB devices for high-level cloning/copying as also ejolson suggests. That is actually what I did in the past with 4x4TB HDDs more or less. The SSD would then be main always on storage, the rest can be asleep or cold storage. It requires you to be able to quickly swap SSD and HDD in case the SSD fails would file. But my experience is that for just home environment, SSD failing is so rare that it isn't worth letting HDDs spins for a decade because RAID/mirror.
As also mentioned, 'mirror' also risks including mirroring faulty/wrong files, the good/correct variant can or will be overwritten before you notice. I have had that once with a DVD image. Luckily, I still had the real DVD stored somewhere in the house, but the wrong image file costed me lots of time lost, as the symptom due to it was rare and a bit random, so I did not consider that the imagefile was the problem.
Statistics: Posted by Capt Jack — Thu Nov 27, 2025 10:29 am