From owner-freebsd-questions@freebsd.org Thu Sep 29 13:17:13 2016 Return-Path: Delivered-To: freebsd-questions@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 35E1CBECD47 for ; Thu, 29 Sep 2016 13:17:13 +0000 (UTC) (envelope-from wam@hiwaay.net) Received: from fly.hiwaay.net (fly.hiwaay.net [216.180.54.1]) (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 0098D8ED for ; Thu, 29 Sep 2016 13:17:12 +0000 (UTC) (envelope-from wam@hiwaay.net) Received: from kabini1.local (dynamic-216-186-138-147.knology.net [216.186.138.147] (may be forged)) (authenticated bits=0) by fly.hiwaay.net (8.13.8/8.13.8/fly) with ESMTP id u8TDH9sn026009 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Thu, 29 Sep 2016 08:17:10 -0500 From: "William A. Mahaffey III" Subject: Re: upgrade to 10.3R .... Cc: FreeBSD Questions !!!! References: <3d09a931-73f8-65d0-588a-70a57c812e85@hiwaay.net> <44mvirztvd.fsf@be-well.ilk.org> Message-ID: <813d4685-1a5c-d744-2bcf-9ef889c49763@hiwaay.net> Date: Thu, 29 Sep 2016 08:22:39 -0453.75 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 In-Reply-To: <44mvirztvd.fsf@be-well.ilk.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Sep 2016 13:17:13 -0000 On 09/28/16 14:56, Lowell Gilbert wrote: > "William A. Mahaffey III" writes: > >> are many online URLs with dire warnings about using ZFS & non-ECC RAM >> causing data corruption (this box is a commodity desktop w/ non-ECC >> 1. Are these concerns valid, i.e. founded in fact ? > Sure. When you get uncorrected bit flips, you can end up corrupting your > data or even the filesystem. That isn't unique to ZFS, of course. Very well. I drew the inference that data integrity would be considerably worse, proportional to RAM errors rather than HDD errors, maybe I am overthinking it .... > > If the data integrity guarantees aren't the deciding reason you're using > ZFS, then this isn't an issue. Some people use ZFS on laptops, for > example, for other features rather than data integrity (most commonly, > compression). > >> 2. If so, should this be mentioned in the wiki or website somewhere ? > I wouldn't bother. "ECC memory reduces data corruption" is right up > there with "the computer will run most effectively when powered up." I *LOVE* it :-) .... > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > -- William A. Mahaffey III ---------------------------------------------------------------------- "The M1 Garand is without doubt the finest implement of war ever devised by man." -- Gen. George S. Patton Jr.