[snip] > Of course, all this assume that my maths is correct ! I would suggest to check out the Reed-Solomon thing in the more friendly form of Vandermonde matrix. It will be completely clear how to generate k parity set with n data set (disk), so that n+k < 258 for the GF(256) space. It will also be much more clear how to re-construct the data set in case of erasure (known data lost). You can have a look, for reference, at: http://lsirwww.epfl.ch/wdas2004/Presentations/manasse.ppt If you search for something like "Reed Solomon Vandermonde" you'll find even more information. Hope this helps. bye, -- piergiorgio -- 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
