Date: Fri, 1 Jul 2016 16:39:17 +0200 From: Julien Cigar <julien@perdition.city> To: InterNetX - Juergen Gotteswinter <jg@internetx.com> Cc: Joe Love <joe@getsomewhere.net>, freebsd-fs@freebsd.org Subject: Re: HAST + ZFS + NFS + CARP Message-ID: <20160701143917.GB41276@mordor.lan> In-Reply-To: <bbaf14e2-4ec6-545c-ba67-a1084100b05c@internetx.com> References: <20160630163541.GC5695@mordor.lan> <50BF1AEF-3ECC-4C30-B8E1-678E02735BB5@gmail.com> <20160701084717.GE5695@mordor.lan> <47c7e1a5-6ae8-689c-9c2d-bb92f659ea43@internetx.com> <20160701101524.GF5695@mordor.lan> <f74627e3-604e-da71-c024-7e4e71ff36cb@internetx.com> <20160701105735.GG5695@mordor.lan> <3d8c7c89-b24e-9810-f3c2-11ec1e15c948@internetx.com> <93E50E6B-8248-43B5-BE94-D94D53050E06@getsomewhere.net> <bbaf14e2-4ec6-545c-ba67-a1084100b05c@internetx.com>
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--mxv5cy4qt+RJ9ypb Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 01, 2016 at 03:44:36PM +0200, InterNetX - Juergen Gotteswinter = wrote: >=20 >=20 > Am 01.07.2016 um 15:18 schrieb Joe Love: > >=20 > >> On Jul 1, 2016, at 6:09 AM, InterNetX - Juergen Gotteswinter <jg@inter= netx.com> wrote: > >> > >> Am 01.07.2016 um 12:57 schrieb Julien Cigar: > >>> On Fri, Jul 01, 2016 at 12:18:39PM +0200, InterNetX - Juergen Gottesw= inter wrote: > >>> > >>> of course I'll test everything properly :) I don't have the hardware = yet > >>> so ATM I'm just looking for all the possible "candidates", and I'm=20 > >>> aware that a redundant storage is not that easy to implement ... > >>> > >>> but what solutions do we have? It's either CARP + ZFS + (HAST|iSCSI),= =20 > >>> either zfs send|ssh zfs receive as you suggest (but it's > >>> not realtime), either a distributed FS (which I avoid like the plague= =2E.) > >> > >> zfs send/receive can be nearly realtime. > >> > >> external jbods with cross cabled sas + commercial cluster solution like > >> rsf-1. anything else is a fragile construction which begs for desaster. > >=20 > > This sounds similar to the CTL-HA code that went in last year, for whic= h I haven=E2=80=99t seen any sort of how-to. The RSF-1 stuff sounds like i= t has more scaling options, though. Which it probably should, given its co= mmercial operation. >=20 > rsf is what pacemaker / heartbeat tries to be, judge me for linking > whitepapers but in this case its not such evil marketing blah >=20 > http://www.high-availability.com/wp-content/uploads/2013/01/RSF-1-HA-PLUG= IN-ZFS-STORAGE-CLUSTER.pdf >=20 >=20 > @ Julien >=20 > seems like you take availability really serious, so i guess you also got > plans how to accomplish network problems like dead switches, flaky > cables and so on. >=20 > like using multiple network cards in the boxes, cross cabling between > the hosts (rs232 and ethernet of course, using proved reliable network > switches in a stacked configuration for example cisco 3750 stacked). not > to forget redundant power feeds to redundant power supplies. the only thing that is not redundant (yet?) is our switch, an HP Pro=20 Curve 2530-24G) .. it's the next step :) >=20 > if not, i whould start again from scratch. >=20 > >=20 > > -Joe > >=20 > > _______________________________________________ > > freebsd-fs@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-fs > > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" > >=20 > _______________________________________________ > freebsd-fs@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" --=20 Julien Cigar Belgian Biodiversity Platform (http://www.biodiversity.be) PGP fingerprint: EEF9 F697 4B68 D275 7B11 6A25 B2BB 3710 A204 23C0 No trees were killed in the creation of this message. However, many electrons were terribly inconvenienced. --mxv5cy4qt+RJ9ypb Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCgAGBQJXdoCRAAoJELK7NxCiBCPATMoQAN5O8PPvvyN2S03MbK8e0Ax0 5QHW9gkECXeQ7UqMbu8HVo4IQIh+od4YhrNrLnTn59Ouv2B95D/tbRO6rsrASEGg 4yIoLUEsDS2B/XzAtOlBkTcwn8/mawrjBG9VjVZrTGHVEGUPX1bvfItDsioT0eRb 0t36vDadycjw+igfs77cnxvEW/SqnNboXlrgfQb1KIpxncpQ6xc0JiqdnmsBtscB ZBd593ADpsO+wjRj1DYeEJOibLdTnhrFwRDLTtcAH0PdM1EKk0BCrEdRwxUdNUKF YVR7f0ZUWv0gNRkePqg7Ag8Wbcbn/Uwc9vl9gDVrkxyXZQ5LU0hwrEAU7BlPPbra FCn6yyfW6r00boskOoNvg5hMOzdO5lzE38Yv9TTs0Y41qSL9q1Hyy+jqjfPI2XvJ U/34dbtuTejWQ/Xno3RHel4OWqKAfLgebhXwIrQHtFFgROnRvFi2gBb80A6bbSO7 Nv1hjFm3+HayLB4sGI2r1+Nq6YN3VZc/NHCoW+xQ3Y2p65fH/k0VAi5iNuIV660n fxTzWo7R8FYN79u7WsjSoCzjBhVHiDJRwtmcB/ijClzbLIafKtGfIOpilrpL63PM hDcg+6MUonkUeweJt0RUjjmdvJA8U+K2u9PvUkNdEaWjeGpe+1Gb3GlF9DeCDprC hKiGTl2UQ9qkZDf9iSL0 =z/8C -----END PGP SIGNATURE----- --mxv5cy4qt+RJ9ypb--
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