I'm pretty sure I read that one of them (whether it is the specified RAID 5/6 or the Hybrid RAID I am not sure) that was readable when properly coaxed with mdadm in a regular linux box. Of course now ...

Let's put this project into context. The whole purpose of a RAID is that if a drive fails, you can recover with no data loss. In this series, I'm pounding on each NAS to see how (or if) it recovers.