From owner-freebsd-fs@freebsd.org Fri Jul 1 13:18:16 2016 Return-Path: Delivered-To: freebsd-fs@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 A1235B87BC8 for ; Fri, 1 Jul 2016 13:18:16 +0000 (UTC) (envelope-from joe@getsomewhere.net) Received: from prak.gameowls.com (prak.gameowls.com [IPv6:2001:19f0:5c00:950b:5400:ff:fe14:46b7]) by mx1.freebsd.org (Postfix) with ESMTP id 60A812456 for ; Fri, 1 Jul 2016 13:18:16 +0000 (UTC) (envelope-from joe@getsomewhere.net) Received: from [IPv6:2001:470:c412:beef:135:c8df:2d0e:4ea6] (unknown [IPv6:2001:470:c412:beef:135:c8df:2d0e:4ea6]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by prak.gameowls.com (Postfix) with ESMTPSA id 32489183FC for ; Fri, 1 Jul 2016 08:18:15 -0500 (CDT) From: Joe Love Message-Id: <93E50E6B-8248-43B5-BE94-D94D53050E06@getsomewhere.net> Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: HAST + ZFS + NFS + CARP Date: Fri, 1 Jul 2016 08:18:14 -0500 References: <71b8da1e-acb2-9d4e-5d11-20695aa5274a@internetx.com> <20160630153747.GB5695@mordor.lan> <63C07474-BDD5-42AA-BF4A-85A0E04D3CC2@gmail.com> <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> <20160701105735.GG5695@mordor.lan> <3d8c7c89-b24e-9810-f3c2-11ec1e15c948@internetx.com> To: freebsd-fs@freebsd.org In-Reply-To: <3d8c7c89-b24e-9810-f3c2-11ec1e15c948@internetx.com> X-Mailer: Apple Mail (2.3124) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.22 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Jul 2016 13:18:16 -0000 > On Jul 1, 2016, at 6:09 AM, InterNetX - Juergen Gotteswinter = wrote: >=20 > Am 01.07.2016 um 12:57 schrieb Julien Cigar: >> On Fri, Jul 01, 2016 at 12:18:39PM +0200, InterNetX - Juergen = Gotteswinter wrote: >>=20 >> 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 ... >>=20 >> 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..) >=20 > zfs send/receive can be nearly realtime. >=20 > external jbods with cross cabled sas + commercial cluster solution = like > rsf-1. anything else is a fragile construction which begs for = desaster. This sounds similar to the CTL-HA code that went in last year, for which = I haven=E2=80=99t seen any sort of how-to. The RSF-1 stuff sounds like = it has more scaling options, though. Which it probably should, given = its commercial operation. -Joe