Hello, please CC. I switched to a RAID 5 array about a year ago and I run raid-check every week, the problem is that I've gotten some corruption of some of my files over time (HW failure and cable creep have caused the array to need to rebuild a few times), and I wanted to try to figure it out if this was a "before I switched to raid problem", or if there may be insufficient protection from my raid array. Here is the case where I'm uncertain. If I've got two bytes. 10101010 01010101 then they are probably xor'ed for parity and that would make it 11111111. Ok, but if one or the other byte or the parity byte are damaged how does raid-check rectify the problem? How does it know which one is damaged.
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