From owner-freebsd-stable@FreeBSD.ORG Thu Jul 18 19:31:16 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 71532FE9 for ; Thu, 18 Jul 2013 19:31:16 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from st11p05mm-asmtp001.mac.com (st11p05mm-asmtpout004.mac.com [17.172.108.249]) by mx1.freebsd.org (Postfix) with ESMTP id 4A6B224C for ; Thu, 18 Jul 2013 19:31:16 +0000 (UTC) Received: from cswiger1.apple.com (unknown [17.209.8.53]) by st11p05mm-asmtp001.mac.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Jan 3 2012)) with ESMTPSA id <0MQ5001NDCVV6270@st11p05mm-asmtp001.mac.com> for freebsd-stable@freebsd.org; Thu, 18 Jul 2013 19:31:08 +0000 (GMT) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.10.8794,1.0.431,0.0.0000 definitions=2013-07-18_08:2013-07-18,2013-07-18,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 ipscore=0 suspectscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=6.0.2-1305010000 definitions=main-1307180156 Content-type: text/plain; charset=us-ascii MIME-version: 1.0 (Mac OS X Mail 6.5 \(1508\)) Subject: Re: Drive failures with ada on FreeBSD-9.1, driver bug or wiring issue? From: Charles Swiger In-reply-to: <5B6FB80D-609D-4336-B3F8-C09AA7CACB44@karthauser.co.uk> Date: Thu, 18 Jul 2013 12:31:06 -0700 Content-transfer-encoding: quoted-printable Message-id: <8AB7617E-791C-45D8-9FA1-A927057EE048@mac.com> References: <20130716225013.1C63B23A@babel.karthauser.co.uk> <60F7BE75-5E2F-471E-A9CE-AF4CD17D96E2@karthauser.co.uk> <281DBD06-81D5-4DDD-9464-B96C80C22C3F@gid.co.uk> <51E7DA7C.8060105@netfence.it> <5B6FB80D-609D-4336-B3F8-C09AA7CACB44@karthauser.co.uk> To: Dr Josef Karthauser X-Mailer: Apple Mail (2.1508) Cc: freebsd-stable@freebsd.org, Andrea Venturoli X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Jul 2013 19:31:16 -0000 Hi-- On Jul 18, 2013, at 12:13 PM, Dr Josef Karthauser = wrote: > On 18 Jul 2013, at 13:07, Andrea Venturoli wrote: >=20 >> Perhaps they are WD Green drives? >=20 > They're WD RE2-GP 1 TB drives (model WD1000FYPS) , not sure if that's = green or not. Yes, those are WDC's Green drives, although they are also the higher = grade version as compared to standard desktop drives which are supposed = to have firmware which plays nice with RAID (TLER, time-limited error = recovery). Updating the firmware and increasing the timeout before these spin down = automagically is likely to help, but as Andrea noted, such drives do = have quite a history of timeout problems due to excessive head parking = and their power conservation attempts. Regards, --=20 -Chuck