Doesn’t losing a vdev cause the entire pool to be lost? I guess to your point with sufficient redundancy for new vdev 1 drive redundancy whether 3 disks or 5 is essentially the same risk. If a vdev is added without redundancy that would increase risk of losing the entire pool.

https://archive.org/details/swgrap

Damn you fine

From Frank Herbert’s Dune

Any road followed precisely to its end leads precisely nowhere. Climb the mountain just a little bit to test that it’s a mountain. From the top of the mountain, you cannot see the mountain.

Why doesn’t that joystick have drift!?