Followup: Mr Anvin, the author of the RAID6 bits, pointed out to me that a major bug in RAID6 in degraded mode existed pre 2.6.10 or so. Since I had just freshly installed FC3, I was using the stock FC3 DVD 2.6.9. That caused major corruption on write when degraded. I'm still playing around to see if I can recover at the filesystem level, since I didn't do much writing. Thanks to all who helped. If anyone has any other ideas, please shout. - 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