From owner-freebsd-stable@freebsd.org Sat Jul 11 14:16:05 2015 Return-Path: Delivered-To: freebsd-stable@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 4F86999876B for ; Sat, 11 Jul 2015 14:16:05 +0000 (UTC) (envelope-from rb@gid.co.uk) Received: from mx0.gid.co.uk (mx0.gid.co.uk [194.32.164.250]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C06E32C0C for ; Sat, 11 Jul 2015 14:16:04 +0000 (UTC) (envelope-from rb@gid.co.uk) Received: from [194.32.164.24] (80-46-130-69.static.dsl.as9105.com [80.46.130.69]) by mx0.gid.co.uk (8.14.2/8.14.2) with ESMTP id t6BE0nDs094283; Sat, 11 Jul 2015 15:00:49 +0100 (BST) (envelope-from rb@gid.co.uk) Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2102\)) Subject: Re: ZFS Woes... Guru needed From: Bob Bishop In-Reply-To: <20150711131921.GA34566@beast.freibergnet.de> Date: Sat, 11 Jul 2015 15:00:44 +0100 Cc: freebsd-stable@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <3DB65FC2-B614-45E3-AB32-9D3A16E6434E@gid.co.uk> References: <20150711131921.GA34566@beast.freibergnet.de> To: holm@freibergnet.de X-Mailer: Apple Mail (2.2102) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 Jul 2015 14:16:05 -0000 Hi, > On 11 Jul 2015, at 14:19, Holm Tiffe wrote: >=20 > So I looked at the bad disks and found one with defective electronics > and one with defective platters and exchanged the controllers (all = Disks > are in "real life ST373453LC disks, original with 534 Byte sector size > or so). Can=92t comment on the ZFS aspects, but I=92m not sure you can rely on = swapping drive electronics these days. I believe that in at least some = cases boards are parameterised for the particular platters and heads = during production. -- Bob Bishop rb@gid.co.uk