Re: On the subject of RAID-6 corruption recovery

What you call "pathologic" cases when it comes to real-world data are very common.  It is not at all unusual to find sectors filled with only a constant (usually zero, but not always), in which case your **512 becomes **1.

Of course it would be easy to check how many of the 512 Bytes are really different on a case-by-case basis and correct the exponent accordingly, and only perform the recovery when the corrected probability of introducing an error is sufficiently low.

Kind regards,

Thiemo Nagel