That's the SnapRAID dev! Also, check out this bit - >> Could you perhaps describe how the Cauchy matrix is >> derived, and under what conditions it would

That's the SnapRAID dev! Also, check out this bit - >> Could you perhaps describe how the Cauchy matrix is >> derived, and under what conditions it would become >> singular? > The Cauchy matrix has the mathematical property ... > ... > Besides the mathematical proof, I've also inverted all > the 377,342,351,231 possible submatrices for up to 6 > parities and 251 data disks, and got an experimental > confirmation of this. "Trust, but verify" :) [0] https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg28966.html https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg...