I’m thinking of buying my first NAS and thinking of what RAID and HDD strategy. I’m thinking of swaping the default OS SSD disk to an 1TB Kingston KC3000 SSD, and then install another 1TB Kingston KC3000 SSD disk in one of the available m2 slots and putting them in RAID 1, or maybe 3 and using RAID 5. I have however not used RAID or NAS before, is this a good idea? Is there any drawbacks to doing this? What am i not thinking of? The benefit as i see and aiming for is that is if one of the drive crash is that it will still run. This setup is only for OS/apps/thumbnails/metadata.
I’d suggest you swap out the 128 GB OS drive, it’s not that hard to access, you just remove the four rubber grommets around the back, take out four screws and pull out the rear plastic cover (carefully, as it has some clips), then remove a further four screws and everything will slide out forward. There’s a warranty void sticker here, but at least in my unit it was quite easy to remove and move, without breaking it.
This gives you access to the OS drive, which is a standard M.2 2280 NVMe drive. Remove that and you can install whatever drive you want. Just make sure you tape down the spring loaded plastic stick that pops out the lid on the bottom, when you put things back in again, or you might end up snapping it off.
Keep in mind that things like fan control etc. might not work well with a different OS though and the CPU fan can get really loud.
Personally I run a pair of hard drive in RAID 1 at the moment and do regular backups to an external drive.