I once had a particularly bad time where the 3ware RAID card had a bad interaction with the controller on our hard drives, preventing a rebuild after a disk fai

I once had a particularly bad time where the 3ware RAID card had a bad interaction with the controller on our hard drives, preventing a rebuild after a disk failure. Thank goodness I had marked that system as best-effort, no-guarantees when asked for cheap local mass storage. This wasn’t even fake motherboard RAID - but it was a screwdriver DIY box. Mdadm is far more resilient, and I would never go with hardware RAID again without full vendor support.