From owner-freebsd-hardware@freebsd.org Sun Oct 1 21:15:15 2017 Return-Path: Delivered-To: freebsd-hardware@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 AE733E2EC49 for ; Sun, 1 Oct 2017 21:15:15 +0000 (UTC) (envelope-from heas@shrubbery.net) Received: from guelah.shrubbery.net (guelah.shrubbery.net [198.58.5.1]) by mx1.freebsd.org (Postfix) with ESMTP id 9875A6F71E for ; Sun, 1 Oct 2017 21:15:15 +0000 (UTC) (envelope-from heas@shrubbery.net) Received: by guelah.shrubbery.net (Postfix, from userid 7053) id D8C383FC78; Sun, 1 Oct 2017 20:47:10 +0000 (UTC) Date: Sun, 1 Oct 2017 20:47:10 +0000 From: heasley To: freebsd-hardware@freebsd.org Cc: heasley Subject: Re: SSD errors Message-ID: <20171001204710.GA86562@shrubbery.net> References: <20170413205932.GJ2149@shrubbery.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170413205932.GJ2149@shrubbery.net> X-PGPkey: http://www.shrubbery.net/~heas/public-key.asc X-note: live free, or die! X-homer: i just want to have a beer while i am caring. X-Claimation: an engineer needs a manager like a fish needs a bicycle X-reality: only YOU can put an end to the embarrassment that is Tom Cruise User-Agent: Mutt/1.8.3 (2017-05-23) X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 01 Oct 2017 21:15:15 -0000 Thu, Apr 13, 2017 at 08:59:32PM +0000, heasley: > I have 4 SSDs in zfs raidz2 on 11.0-RELEASE-p2. There on QD sleds rated > for sata6 to convert them from 2.5" to 3.5 slots in a Supermicro SC733TQ > chassis (2012) with a Supermicro X10SRi-F mb and using the on-board > controller (either one). I swapped the SATA cables for some with "extra > shielding". And the 4 HDs used previously (mix of WD and seagate 750g > and 2T) worked flawlessly. I came upon this product last week, StarTech SATSABP425 4x2.5" SATA/SAS disk chassis/backplane. Fits in a 5.25" chassis disk/CDrom slot and has 4 QD 2.5 SATA6 slots. Moved the SSDs to this and the problem has disappeared. Normally, bonnie++ or zpool scrub would generate a ton of errors; zero errors now. This problem may be related to these QD sleds[1]. AFAIK, the board on that part is not active, it is just a pair of connectors. I have looked for a sled without this board, but have not found one. This one[2] looked promising, but it is not the correct fit. The problem could still be the power supply or the disk backplane. I have used these sleds with 4 other EVO SSDs (Pro and non-Pro versions), but they are in an old Chenbro chassis. [1] https://www.amazon.com/gp/product/B00F3QFKNS/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1 [2] https://www.amazon.com/gp/product/B0090UG55A/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 Thanks for the other feedback about this.