From owner-freebsd-fs@freebsd.org Mon May 16 10:15:15 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 7B911B3C34D for ; Mon, 16 May 2016 10:15:15 +0000 (UTC) (envelope-from girgen@FreeBSD.org) Received: from mail.pingpong.net (mail.pingpong.net [79.136.116.202]) by mx1.freebsd.org (Postfix) with ESMTP id 44DA2131F for ; Mon, 16 May 2016 10:15:14 +0000 (UTC) (envelope-from girgen@FreeBSD.org) Received: from [172.16.0.5] (citron.pingpong.net [195.178.173.66]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.pingpong.net (Postfix) with ESMTPSA id 3F6601667F for ; Mon, 16 May 2016 12:08:39 +0200 (CEST) From: Palle Girgensohn X-Pgp-Agent: GPGMail 2.6b2 Content-Type: multipart/signed; boundary="Apple-Mail=_7DF1126C-CDCD-4386-958B-B5EEAA0A8866"; protocol="application/pgp-signature"; micalg=pgp-sha256 Subject: Best practice for high availability ZFS pool Date: Mon, 16 May 2016 12:08:38 +0200 Message-Id: <5E69742D-D2E0-437F-B4A9-A71508C370F9@FreeBSD.org> To: freebsd-fs@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) 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 10:15:15 -0000 --Apple-Mail=_7DF1126C-CDCD-4386-958B-B5EEAA0A8866 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hi, We need to set up a ZFS pool with redundance. The main goal is high = availability - uptime. I can see a few of paths to follow. 1. HAST + ZFS 2. Some sort of shared storage, two machines sharing a JBOD box. 3. ZFS replication (zfs snapshot + zfs send | ssh | zfs receive) 4. using something else than ZFS, even a different OS if required. My main concern with HAST+ZFS is performance. Google offer some insights = here, I find mainly unsolved problems. Please share any success stories = or other experiences. Shared storage still has a single point of failure, the JBOD box. Apart = from that, is there even any support for the kind of storage PCI cards = that support dual head for a storage box? I cannot find any. We are running with ZFS replication today, but it is just too slow for = the amount of data. We prefer to keep ZFS as we already have a rather big (~30 TB) pool and = also tools, scripts, backup all is using ZFS, but if there is no = solution using ZFS, we're open to alternatives. Nexenta springs to mind, = but I believe it is using shared storage for redundance, so it does have = single points of failure? Any other suggestions? Please share your experience. :) Palle --Apple-Mail=_7DF1126C-CDCD-4386-958B-B5EEAA0A8866 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 - http://gpgtools.org iQEcBAEBCAAGBQJXOZwmAAoJEDQn0sf36Uls3OsIAKelrK6+NG5LtCsTOOa0yy+2 5JCUsdVm+77IOGC2tl8AVTYGK2SODSiW1WZZiCNB4pfRFacKjNqBGSm3GDUizh0k CvALLacegxvSqsKzu6TMUifQa0UPZayoswLMKbfj6zavKy+kxFyHTiursS7X5XgZ HOng44oq+p1S+AtvXvRTDegSMIIAzYFppznN+vNuyv1qjOBoPJaf4gp9g2PCfOi0 S6iz/J5f1x2Dtg3m/FAky7nn2Kj6BgajyLaLtOi1lhoG91PqKFngneFidjtLS0Sr vmaIO/HGQpaPi2RaEpAODoQzUbfF7fdp8IVRYlS1FuqzdfIckF/MzpyKJV6R7E0= =RLQy -----END PGP SIGNATURE----- --Apple-Mail=_7DF1126C-CDCD-4386-958B-B5EEAA0A8866--