From mboxrd@z Thu Jan 1 00:00:00 1970 From: Loic Dachary Subject: Re: durability model Date: Wed, 28 May 2014 16:05:02 +0200 Message-ID: <5385ED0E.9070204@dachary.org> References: <1401131148.7008.YahooMailNeo@web165003.mail.bf1.yahoo.com> <1401197435.39621.YahooMailNeo@web165002.mail.bf1.yahoo.com> <5384A010.4080300@dachary.org> <1401284130.75330.YahooMailNeo@web165006.mail.bf1.yahoo.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="EPLVnUAv08X1D4CFroosDI0sWDTaa00D9" Return-path: Received: from smtp.dmail.dachary.org ([91.121.254.229]:51768 "EHLO smtp.dmail.dachary.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751466AbaE1OFI (ORCPT ); Wed, 28 May 2014 10:05:08 -0400 In-Reply-To: <1401284130.75330.YahooMailNeo@web165006.mail.bf1.yahoo.com> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Koleos Fuskus Cc: Kyle Bader , Ceph Development This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --EPLVnUAv08X1D4CFroosDI0sWDTaa00D9 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 28/05/2014 15:35, Koleos Fuskus wrote: >=20 >=20 >> 1. What will be erasure model unit? Is it a pool or a placement group?= I cannot see the best option here yet, probably because my inexperience = with Ceph. >=20 > A pool.=20 > OK. this is what I thought but some things are not clear enough. I am d= eploying Ceph to toying a bit more. >=20 >=20 >> 3. Metadata: Jerasure creates metadata files. How are those files stor= ed in ceph (what kind of=20 > Jerasure does not create a metadata file. >=20 > It does on my machine! at least with jerasure 1.2 on mac os :) If you mean the files that are created by the command line examples provi= ded with jerasure (1.2 or 2), they are not required and only meant for te= st purposes. Cheers >=20 >=20 >=20 >=20 > I proposed an update to the documentation to clarify this : https://git= hub.com/ceph/ceph/pull/1856 . Does it look sensible to you ? >=20 >=20 >=20 > THanks! >=20 > Cheers, >=20 >=20 > Koleosfuscus >=20 --=20 Lo=EFc Dachary, Artisan Logiciel Libre --EPLVnUAv08X1D4CFroosDI0sWDTaa00D9 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/ iEYEARECAAYFAlOF7Q4ACgkQ8dLMyEl6F20ZtgCguJlDY6XyEbkTNmoYS3GoJuxG 1ZQAnR/ANHd/XOk62evGyDA6B/9L4ANr =oVlc -----END PGP SIGNATURE----- --EPLVnUAv08X1D4CFroosDI0sWDTaa00D9--