I guess im confused at the worry about raid…
The point of raid is speed, but also redundancy. And the odds of 2 drives out of 3 failing at the exact same time is super small…
Synologies raid aray can be set up so that if one drive fails, you can replace it with a new drive and carry on. The array is shared in a way that one bad drive doesnt break the entire system. Sure, your 30tb is functionally less, but your data is safe outside of flooding or a house fire. Thats how i understood it.
maybe im wrong. Idk.
Hopefully the nas ive got holds up for a long time…