Lets validate some basics first: 1, 2) Have you stress-tested your CPU and ram? 3: the CRC is off only on two nibbles (between bits 4 and 11); and nowhere else. That usually doesn't happen with CRCs. 3) >> In the past I had some similar SATA controllers become corrupted by some test-debugging code in an older version of the kernel. Even if the devices firmware is up to date TRY REFLASHING/'updating' THEM. << 4) Have you run S.M.A.R.T. self tests 5) If possible badblocks as well; once you've verified everything else. Those are all possible and easy to test for causes of data-corruption. -- 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