From owner-freebsd-fs@freebsd.org Tue Apr 24 06:09:26 2018 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 80CD9FBCCA3 for ; Tue, 24 Apr 2018 06:09:26 +0000 (UTC) (envelope-from karli@inparadise.se) Received: from mail.inparadise.se (h-112-105.A444.priv.bahnhof.se [158.174.112.105]) (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 115CC7F85A for ; Tue, 24 Apr 2018 06:09:25 +0000 (UTC) (envelope-from karli@inparadise.se) Received: from localhost (localhost [127.0.0.1]) by mail.inparadise.se (Postfix) with ESMTP id 1BD44431E2; Tue, 24 Apr 2018 08:09:23 +0200 (CEST) Received: from mail.inparadise.se ([127.0.0.1]) by localhost (mail.inparadise.se [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id WPhW7o4V1jhs; Tue, 24 Apr 2018 08:09:22 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by mail.inparadise.se (Postfix) with ESMTP id E7446431E8; Tue, 24 Apr 2018 08:09:21 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.10.3 mail.inparadise.se E7446431E8 X-Virus-Scanned: amavisd-new at inparadise.se Received: from mail.inparadise.se ([127.0.0.1]) by localhost (mail.inparadise.se [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id MAfU5NJZgSEH; Tue, 24 Apr 2018 08:09:21 +0200 (CEST) Received: from emp181-188.eduroam.uu.se (emp181-188.eduroam.uu.se [130.238.181.188]) by mail.inparadise.se (Postfix) with ESMTPSA id AEA84431E2; Tue, 24 Apr 2018 08:09:21 +0200 (CEST) Message-ID: <1524550160.1130.6.camel@inparadise.se> Subject: Re: ctl_isc_lun_sync: Received conflicting HA LUN From: Karli =?ISO-8859-1?Q?Sj=F6berg?= Reply-To: karli@inparadise.se To: Mikhail Zakharov Cc: "freebsd-fs@freebsd.org" , Mike Tancsa Date: Tue, 24 Apr 2018 08:09:20 +0200 In-Reply-To: <1e1e7cd5-0797-c168-fbce-a36edc6a432e@sentex.net> References: <4cb4aa83-bd49-0c20-4e41-c11c682b0570@sentex.net> <1e1e7cd5-0797-c168-fbce-a36edc6a432e@sentex.net> Organization: InParadise Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.18.5.2-0ubuntu3.2 Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Apr 2018 06:09:26 -0000 On Mon, 2018-04-23 at 13:11 -0400, Mike Tancsa wrote: > On 4/23/2018 12:59 PM, Mikhail Zakharov wrote: > >=20 > > Hello Mike, > >=20 > > Thank you for your interest to my paper. I appreciate it very much! > > Your error may be a consequence of the initial HA misconfiguration. > > What is in your /boot/loader.conf? Although the described config is > > quite simple, I can recheck the instruction in my paper in a couple > > of weeks only, unfortunately I=E2=80=99m on vacation right now. [snip] I read your articles on CTL HA, BQ and BeaST, and just wanted to say they are amazing, good job! One thing I=C2=B4m wondering about though is if you can claim HA with jus= t two nodes, usually you need at least three, where the third is a tie- breaker. Otherwise with your current setup, both systems may loose contact with each other while both still being powered on, leading to potential split brain situations. What are your thoughts about that? /K