Date: Sun, 1 Oct 2017 20:47:10 +0000 From: heasley <heas@shrubbery.net> To: freebsd-hardware@freebsd.org Cc: heasley <heas@shrubbery.net> Subject: Re: SSD errors Message-ID: <20171001204710.GA86562@shrubbery.net> In-Reply-To: <20170413205932.GJ2149@shrubbery.net> References: <20170413205932.GJ2149@shrubbery.net>
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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.
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