From owner-freebsd-fs@freebsd.org Thu Jun 30 16:32:20 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 668B5B87352 for ; Thu, 30 Jun 2016 16:32:20 +0000 (UTC) (envelope-from bsdunix44@gmail.com) Received: from mail-oi0-x22b.google.com (mail-oi0-x22b.google.com [IPv6:2607:f8b0:4003:c06::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 27FB22865 for ; Thu, 30 Jun 2016 16:32:20 +0000 (UTC) (envelope-from bsdunix44@gmail.com) Received: by mail-oi0-x22b.google.com with SMTP id f189so72768670oig.3 for ; Thu, 30 Jun 2016 09:32:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=references:mime-version:in-reply-to:content-transfer-encoding :message-id:cc:from:subject:date:to; bh=gSSTDdS6MdvFNtOWpW1Q6rfyl8LWCEUiV2FPqo/MbAg=; b=Q8E634AYsJ6yMwS18IIPml1YVXwE8ybeaCzrMH2vChwGB8zVaDQQCy/n/I+pkoXA4O R7el0EfVREhc+wsuH/BGFkG13NC9g41z0kNZ8ou1HPNQihWzLHXrrkkEwxbbdflK8xlS htVyZBrZpeiBxv9PkXKYn5BsAL/1cOXlgM1+2WqR4dd2OTN6yatafSYgl3hmeRCmve2m sZZyrJKEM53PN1LHvd2QCzirs4xY7qNg+h8eA6YMle49Zs2GPNTtAl31rvDD9x1Qo2X/ 0MzCrmg3NKu9DtsZslJEXUhFxKiOvHmybkJ3igsOnMmKlL50x03dSQ5w5OBNxaSAXYXm NSjQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:references:mime-version:in-reply-to :content-transfer-encoding:message-id:cc:from:subject:date:to; bh=gSSTDdS6MdvFNtOWpW1Q6rfyl8LWCEUiV2FPqo/MbAg=; b=KhRXmaR2YpRXihegoqZUT+0pVNAU2kvrQDWW36mT8mnamiwjvYCZHjotjvuJVr2c8w e9kUyL0pPvNq8hL0x1Y9WLvkFAi+kaCEFNyJOqfmH0TnpjsHHuNpUhlntuK4qZ8fLTPK J3KGNmUoqoozzuWWWekZ76+STZ8eKCNhHFJiY9nAG9VV3UXuqM6mOFPktv8kYZGwOmUD EFX5OvGxaGTiseD5DSNwRSEzqqMKYM7+posNC6da3+q+/nowDqAhP2aHxC9VuDTZEINJ tbILf8BRULgZvDhk6aCZO4Hl56gKMixPye8A4us2yyZ1tpUdQd46ahVL7AdSxL51kfgF tITA== X-Gm-Message-State: ALyK8tL7TFeZVeD9J4h5mRbSLa/UhvZ+rzqptxagf9WNKZjD+ip8qSBwebSUnCkRzHXQdA== X-Received: by 10.202.195.200 with SMTP id t191mr9468911oif.28.1467304339445; Thu, 30 Jun 2016 09:32:19 -0700 (PDT) Received: from [192.168.0.10] (cpe-70-118-225-173.kc.res.rr.com. [70.118.225.173]) by smtp.gmail.com with ESMTPSA id y142sm3562361oie.4.2016.06.30.09.32.18 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 30 Jun 2016 09:32:18 -0700 (PDT) References: <20160630144546.GB99997@mordor.lan> <71b8da1e-acb2-9d4e-5d11-20695aa5274a@internetx.com> <20160630153747.GB5695@mordor.lan> <63C07474-BDD5-42AA-BF4A-85A0E04D3CC2@gmail.com> Mime-Version: 1.0 (1.0) In-Reply-To: <63C07474-BDD5-42AA-BF4A-85A0E04D3CC2@gmail.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Message-Id: <678321AB-A9F7-4890-A8C7-E20DFDC69137@gmail.com> Cc: freebsd-fs@freebsd.org X-Mailer: iPhone Mail (13F69) From: Chris Watson Subject: Re: HAST + ZFS + NFS + CARP Date: Thu, 30 Jun 2016 11:32:17 -0500 To: Ben RUBSON 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: Thu, 30 Jun 2016 16:32:20 -0000 Sent from my iPhone 5 >=20 >>=20 >> Yes that's another option, so a zpool with two mirrors (local +=20 >> exported iSCSI) ? >=20 > Yes, you would then have a real time replication solution (as HAST), compa= red to ZFS send/receive which is not. > Depends on what you need :) >=20 >>=20 >>> ZFS would then know as soon as a disk is failing. So as an aside, but related, for those watching this from the peanut gallery= and for the benefit of the OP perhaps those that run with this setup might g= ive some best practices and tips here in this thread on making this a good r= eliable setup. I can see someone reading this thread and tossing two crappy E= thernet cards in a box and then complaining it doesn't work well.=20 Perhaps those doing this could listed recommended NICs so write performance o= f the slave over the network isn't slow as sin, or their relevant part of th= eir config scripts to get this running well, any sysctl's set to boost perfo= rmance, gotcha's you e seen using this setup, and if a mirror failed were yo= u happy with this. India during recovery? Anything that will help current an= d future folks stumbling across this thread I think would be a big help in g= etting this good idea used a little more widely.=20 Chris=