This is one of the best homelab servers I ever had. Not the most powerful, but really silent, very small footprint and it feels so reliable compared to much higher-speced (but same price range) computers I've had in the past. 

Really love it. (Runs snapchain like a pro)

- Raspberry Pi5 16GB
- NVMe Base Case for Raspberry Pi 5 (pimoroni)
- NVMe Base Duo for Raspberry Pi 5 - 2x2TB SSD

Dad, geek, conversation liquidity provider. vrypan.net (home), @l--o--l (fun). devcoin:$lemon3

are you using it as redundant or just extra storage? can the pi just treat both drives as one with total capacity of the sum of both?

Using them as a singe 4TB logical volume.

do you know if the drives have to be the same size?

I don't think so. The linux LVM can handle any drive combination. But not an expert.

They appear as two separate devices (and then I joined them in a single logical volume)

I’ve got some nvme laying around from another upgrade that i could put to use.