SSD for PBP

[Arwen]

Yes, I tend to use different storage devices for each half, just to change the failure risk. For example, my FreeNAS has 2 x 4TB WD Reds & 2 x 4TB WD Red Pros, in a RAID-Z2, (aka RAID-6). So, it's much less likely to have more than 2 disks fail at the same time. Plus, for the extra paranoia in me, I bought them from different vendors and at different times. So hopefull, different batches. But then again, I've experienced multiple lemon hard drives, mostly at work, but a few at home.

As for the RK3399 PCIe controller supporting PCIe bridge devices, I would think that would be more of a software issue. (But I could be wrong.)

However, it's highly un-likely we can get an adapter board that has both a PCIe splitter for a M.2 slot for WiFi, and storage expansion too, (which would require a controller as well, unless it was NVMe / M.2).

My preference for file systems is now ZFS. (Yes, even on Linux. Even on my existing laptop.) Just too many good features, (like the built in mirroring).