From owner-freebsd-fs@freebsd.org Mon May 16 13:56:38 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 781DAB3DF25 for ; Mon, 16 May 2016 13:56:38 +0000 (UTC) (envelope-from borjam@sarenet.es) Received: from cu01176a.smtpx.saremail.com (cu01176a.smtpx.saremail.com [195.16.150.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 36C3A135D; Mon, 16 May 2016 13:56:37 +0000 (UTC) (envelope-from borjam@sarenet.es) Received: from [172.16.8.36] (izaro.sarenet.es [192.148.167.11]) by proxypop03.sare.net (Postfix) with ESMTPSA id 35EB89DD37C; Mon, 16 May 2016 15:51:03 +0200 (CEST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: Best practice for high availability ZFS pool From: Borja Marcos In-Reply-To: <5E69742D-D2E0-437F-B4A9-A71508C370F9@FreeBSD.org> Date: Mon, 16 May 2016 15:51:02 +0200 Cc: freebsd-fs@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: References: <5E69742D-D2E0-437F-B4A9-A71508C370F9@FreeBSD.org> To: Palle Girgensohn X-Mailer: Apple Mail (2.3124) 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: Mon, 16 May 2016 13:56:38 -0000 > On 16 May 2016, at 12:08, Palle Girgensohn wrote: >=20 > Hi, >=20 > We need to set up a ZFS pool with redundance. The main goal is high = availability - uptime. >=20 > I can see a few of paths to follow. >=20 > 1. HAST + ZFS Which means that a possible corruption causing bug in ZFS would vaporize = the data of both replicas. > 3. ZFS replication (zfs snapshot + zfs send | ssh | zfs receive) If you don=E2=80=99t have a hard requirement for synchronous replication = (and, in that case, I would opt for a more application aware approach) it=E2=80=99s the best method in my opinion. Borja.