From mboxrd@z Thu Jan 1 00:00:00 1970 From: Loic Dachary Subject: Re: coefficients Date: Fri, 11 Jul 2014 20:19:39 +0300 Message-ID: <53C01CAB.5070208@dachary.org> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="MSKp3dv2xDkH1uclovr1gNLdEh89R3fsd" Return-path: Received: from mail2.dachary.org ([91.121.57.175]:42222 "EHLO smtp.dmail.dachary.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751114AbaGKRTp (ORCPT ); Fri, 11 Jul 2014 13:19:45 -0400 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Koleos Fuscus Cc: "ceph-devel@vger.kernel.org" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --MSKp3dv2xDkH1uclovr1gNLdEh89R3fsd Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi koleosfuscus, Thanks for the pointer, it is very helpful. I'm inclined to keep the simp= ler approach for the first implementation while exploring and learning mo= re about the smarter / more complex approach. This may change if someone = willing to help comes on board in the meantime ;-) Cheers On 11/07/2014 13:48, Koleos Fuscus wrote: > Hi Loic, >=20 > If you still need to calculate more coefficients there is an > explanation of how to construct the coding equations in the paper > Erasure coding in Windows Azure Storage (unless you will keep your LRC > implementation simple and do only the LRC (10,6,5) ). I undertand that > the codes LRC in the mentioned paper are not exactly the same but at > least the paper explains the coefficients. I think in Azure they used > functional repair instead of exact repair as you wish. >=20 > koleosfuscus >=20 > ________________________________________________________________ > "My reply is: the software has no known bugs, therefore it has not > been updated." > Wietse Venema >=20 --=20 Lo=C3=AFc Dachary, Artisan Logiciel Libre --MSKp3dv2xDkH1uclovr1gNLdEh89R3fsd Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlPAHKsACgkQ8dLMyEl6F22uaQCgh8Goe28l/iTydZYXO2Btbi6m aT4AoMF6ZIbgSBvw0dkTNZtE7y6Wh3p/ =FpNH -----END PGP SIGNATURE----- --MSKp3dv2xDkH1uclovr1gNLdEh89R3fsd--