Dear All, I am going to make some modifications to RAID protocol to make it more reliable for my case (for a scientific, and maybe later, industrial purpose). For example, I'm going to hold a Global Parity (a parity taken across the whole data stripe rather than a row) alongside normal row-wise parities, to cope with an extra sector/page failure per stripe. Do you have any suggestion how can I implement this with a moderate effort (I mean what functions should be modified)? have any of you had any similar effort? I also appreciate if you guide me how can I enable DEBUG mode in mdadm. Bests, Mostafa -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html