|LMiller7, you do address there is a possibility to recover RAID+0 Arrays if they fail, but it's expensive/difficult at the best of times? I guess that kinda answers my question, the RAID Chipset itself is the major weakness of the whole process (not including RAID+1 it seems). If the RAID itself can crumble due to hardware failure (however minute the chance), it becomes a real threat.|
It's all I wanted to know, because I've read about comparisons of RAID arrays, always discussing the redundancy and safety of data. But it can all go to pot anyway if the controller fails, which I swear is never really addressed. I guess it's obvious, but seems unusual I've never seen it clearly mentioned.
So the answer is, perhaps go for the RAID0+1 array with 4 fresh drives, but disband my existing Mirror Array into seperate, standard drives again and use one as a second Backup. If the External Enclosure fails, I have my drive backup, and vice versa.
This probably seems extreme (It's certainly a large expense to buy the Drives and RAID Enclosure), but I use my PC a lot and losing data is just unacceptable.
Hardware is replaceable, Data is not.
Thank you both so much for your time and invaluable responses :)
On a side note, I have never had a single drive fail me, ever. Even an old 3Gb IDE from our first machine still works, but it's just a matter of time...