An md/raid6 data corruption bug

Indeed. But the actual storage is about 11TB. Doing a full convert would be a pain in the butt. :D It helps that I have the backup array though. So I could. I don't currently have enough 3TB disks to do that however. the backup array has 5 3TB disks. so it wouldn't actually be too expensive to do, just one more (or two, cause why not?) disk(s). If I do, I'll be waiting for a big sale on the 3TB disks. It's just not a huge priority for me at the moment. I have more than enough storage and enough protection at the moment to last quite a long time.