From owner-freebsd-questions@freebsd.org Mon Sep 5 15:27:31 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 143A1A9D09C for ; Mon, 5 Sep 2016 15:27:31 +0000 (UTC) (envelope-from chris@lrckinfo.com) Received: from alt14.smtp-out.videotron.ca (alt14.smtp-out.videotron.ca [135.19.0.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "Client", Issuer "CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id CC2898C9 for ; Mon, 5 Sep 2016 15:27:30 +0000 (UTC) (envelope-from chris@lrckinfo.com) Received: from gatekeeper.tellme3times.com ([69.70.25.74]) by Videotron with SMTP id gvXMb6Mfbq3HFgvXPbKNrc; Mon, 05 Sep 2016 11:10:20 -0400 X-Authority-Analysis: v=2.1 cv=Q9lym9Ca c=1 sm=1 tr=0 a=6QbSC2gnQtRte8UfxjO8jg==:117 a=6QbSC2gnQtRte8UfxjO8jg==:17 a=L9H7d07YOLsA:10 a=9cW_t1CCXrUA:10 a=s5jvgZ67dGcA:10 a=GW1xBdLrtEIA:10 a=F8SWWchAAAAA:8 a=12OMvE6BAAAA:8 a=6I5d2MoRAAAA:8 a=l71IS12P6e32MzJOkCgA:9 a=QEXdDO2ut3YA:10 a=7GAR2BsnulMA:10 a=-FEs8UIgK8oA:10 a=NWVoK91CQyQA:10 a=YrG7-t1fvJWeFml3i60A:9 a=5ntzJI6F9JKiHkPLgjzk:22 a=wHvUaEqxXhcxZfXPEXPs:22 a=IjZwj45LgO3ly-622nXo:22 Received: from [192.168.7.61] (unknown [192.168.7.61]) by gatekeeper.tellme3times.com (Postfix) with ESMTP id EAEBDF261; Mon, 5 Sep 2016 11:10:15 -0400 (EDT) Subject: Re: High availability storage : raid1 of iSCSI or iSCSI + hast Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Content-Type: multipart/signed; boundary="Apple-Mail=_77021448-AEF2-47FF-A079-84627993E04E"; protocol="application/pgp-signature"; micalg=pgp-sha512 X-Pgp-Agent: GPGMail From: Chris Kiakas In-Reply-To: Date: Mon, 5 Sep 2016 11:10:14 -0400 Cc: freebsd-questions@freebsd.org Message-Id: <2D88912C-2A75-4ED6-BE14-563064250D21@lrckinfo.com> References: To: =?utf-8?Q?Sol=C3=A8ne_Rapenne?= X-Mailer: Apple Mail (2.3124) X-CMAE-Envelope: MS4wfFzN49juWA+TWQLzho4sm6IfXdpyY0CwEsfpF/7LnD1V07VUHJD3KN9EAP7oTlhEtOkmk55ds0/b9AaYF+qEN5lvcZ6p0CLefyKBe2IG9v2BDY8JIPIo wHVPqCznk3BIqx3HWOKo9K4khR6U22Jwru40lh2RyBHOUIXWI5tkSuL0kzcF5bHS7OQYCRG96k7qxKLIspgNxzHwixxh9Vx5R2Y3YTpaqJK6HTwWG7hDHJUa X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Sep 2016 15:27:31 -0000 --Apple-Mail=_77021448-AEF2-47FF-A079-84627993E04E Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Just a note on option 1. It does not need to be slow. You can get 10gb connection NIC or = Multilink (laggy/lacp) several NICs together. Make sure your switch = supports it. Chris chris@lrckinfo.com --------------------------------------------------------------- 514.884.8185 320, rue de la Fenaison Varennes, Qu=C3=A9bec, J3X 2H2 --------------------------------------------------------------- http://www.lrckinfo.com > On Sep 5, 2016, at 10:56 AM, Sol=C3=A8ne Rapenne = wrote: >=20 > Hello, >=20 > I am building a high availability cluster with FreeBSD, to make it = simple, we have 2 master/slave server called Web1 and Web2 and 2 = master/slave file server called iSCSI1 and iSCSI2. >=20 > I have been thinking about 2 options and I would like to have some = feedback if you run one of the option (or something else) : > - the first is to create a raid1 of both iSCSI target and mount it = on the webserver who is the master. > - the second is mounting the iSCSI target from the master iSCSI = server and the master iSCSI server will replicates the data to the slave >=20 >=20 > 1st option : MASTER Web connects to both iSCSI server and make > a raid1 of the iSCSI >=20 > pros : in case of failure of iSCSI 1 or 2, Web isn't affected > cons : slow ? network bottleneck ? >=20 > +---------+ CARP +---------+ > | Web1 | <----> | Web2 | > +---------+ +---------+ > |raid1\ > | \__________ > | \ > +---------+ +---------+ > | iSCSI 1 | | iSCSI 2 | > +---------+ +---------+ >=20 >=20 > 2nd option : MASTER Web connects to MASTER iSCSI server, > which replicates to slave iSCSI server with HAST >=20 > pros : no idea > cons : if we want to switch the iSCSI server we have to stop = everything >=20 > +---------+ CARP +---------+ > | Web1 | <-----> | Web2 | > +---------+ +---------+ > | > | > +---------+ CARP + +---------+ > | iSCSI 1 | HAST | iSCSI 2 | > +---------+ <----> +---------+ >=20 >=20 > Thank you for reading > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to = "freebsd-questions-unsubscribe@freebsd.org" --Apple-Mail=_77021448-AEF2-47FF-A079-84627993E04E Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQIcBAEBCgAGBQJXzYrXAAoJEJd//Oz/ACy7Fw8P/2lZ1MtoC/nvjrVHzmeMq82N l6la8jRmsTCzxmFtx8n0XL/qjxLyvy0fWH/jnLSdjdXIKJm7Rw7IhCpc5xaINrUm 2DWRZPoJf8A6JyqRh3f7ES3xBgRdU+FRBt5Hob3W8d//tcA+bKNdkXU6BzhRL8m+ Z1RAFiZ9hWUCMdvDG9qYDnF/Eb/yasXZaq7on2+e3WJxFNBWqSiw1ptwm5r7GrWv qkcAU6xMtreamoWPAHLTk//PrGrZrkEA1xGDU5jajFIkoAhGC2cawRSZmcBnetDo +2By16SBSJND6YkZdcVvi6nTBSv2R9ZpfqZc1M2dAKH0ECLNC9NmPM6rSiRJz9aA kJ3mGMNxgFrURGAuT7D5E06oOKB8FHS6zS/HdwWFdC7SuS47HPgz4Bt5sW/wHvjO p/TGMrbLNUTejhOr8QMzWhe7GoKytCy2oRtSDeCzVaHjwH3nxjJzmKueht/WcCZA j7EWHjfUh3aedfr/b5QljhdJmKUo7hCD8aMTohRuZaq41Le9phzwJ9zzeX4jw/ta 1pUahxsaHVsihuTXYTRQbk3jho8IxYiEYtDa1mDMaubL1A9ZW9sDWGYl9dsJ/p25 Ge9ldRqrecLvBSZ/5e28u8E0/zf3UmZQHBU2RCQb+oSHfIkm+/LY9NKy2WDpBaml Cdc9rFCKrTa/QJGJyPVT =UPGD -----END PGP SIGNATURE----- --Apple-Mail=_77021448-AEF2-47FF-A079-84627993E04E--