From owner-freebsd-questions@freebsd.org Fri Jan 4 19:48:46 2019 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 356C01437795 for ; Fri, 4 Jan 2019 19:48:46 +0000 (UTC) (envelope-from 4250.10.freebsd-questions=freebsd.org@email-od.com) Received: from s1-b0c6.socketlabs.email-od.com (s1-b0c6.socketlabs.email-od.com [142.0.176.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 5F181810C9 for ; Fri, 4 Jan 2019 19:48:45 +0000 (UTC) (envelope-from 4250.10.freebsd-questions=freebsd.org@email-od.com) DKIM-Signature: v=1; a=rsa-sha256; d=email-od.com;i=@email-od.com;s=dkim; c=relaxed/relaxed; q=dns/txt; t=1546631325; x=1549223325; h=content-transfer-encoding:content-type:mime-version:references:in-reply-to:message-id:subject:cc:to:from:date:x-thread-info; bh=NGZeNiKM5KHRGcI5Egs21ZYcbWbZZjb6qk9O7zh0mjo=; b=N2x0rKLOG+k01irwwNnmmrcAUgDggDQ+RDu7eItTTNBFeNl7QY5oY9wOTjYzGk9KMWjOAC8k2G+Db74C0DalBQk2dYdsXHqlpLsyXja6cqIoM7dWQT4cNUCjcLFTYZbfflgamFASPjN6wbAtJ91alO9xi8oZ8jTuFDQiks2+gL0= X-Thread-Info: NDI1MC4xMi4xYTEwMDAwMDNjNWM2ZjkuZnJlZWJzZC1xdWVzdGlvbnM9ZnJlZWJzZC5vcmc= Received: from r2.h.in.socketlabs.com (r2.h.in.socketlabs.com [142.0.180.12]) by mxsg2.email-od.com with ESMTP(version=Tls12 cipher=Aes256 bits=256); Fri, 4 Jan 2019 14:48:35 -0500 Received: from smtp.lan.sohara.org (EMTPY [89.127.62.20]) by r2.h.in.socketlabs.com with ESMTP(version=Tls12 cipher=Aes256 bits=256); Fri, 4 Jan 2019 14:48:35 -0500 Received: from [192.168.63.1] (helo=steve.lan.sohara.org) by smtp.lan.sohara.org with smtp (Exim 4.91 (FreeBSD)) (envelope-from ) id 1gfVSL-000HWg-4A; Fri, 04 Jan 2019 19:48:33 +0000 Date: Fri, 4 Jan 2019 19:48:32 +0000 From: Steve O'Hara-Smith To: freebsd-questions@freebsd.org Cc: Dave B Subject: Re: freebsd-questions Digest, Vol 760, Issue 6 Message-Id: <20190104194832.13fcd66afc80d368d6bc496c@sohara.org> In-Reply-To: <68188ee5-14f1-47a6-f4d8-fd049102f12c@googlemail.com> References: <00fa089b-d736-e535-6073-2fd48126121f@googlemail.com> <20190104155750.GA48956@neutralgood.org> <68188ee5-14f1-47a6-f4d8-fd049102f12c@googlemail.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.32; amd64-portbld-freebsd12.0) X-Clacks-Overhead: "GNU Terry Pratchett" Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 5F181810C9 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=email-od.com header.s=dkim header.b=N2x0rKLO; spf=pass (mx1.freebsd.org: domain of 4250.10.freebsd-questions=freebsd.org@email-od.com designates 142.0.176.198 as permitted sender) smtp.mailfrom=4250.10.freebsd-questions=freebsd.org@email-od.com X-Spamd-Result: default: False [-2.53 / 15.00]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:142.0.176.0/20]; MV_CASE(0.50)[]; RCVD_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[email-od.com:+]; RCPT_COUNT_TWO(0.00)[2]; MX_GOOD(-0.01)[cached: mxbh.socketlabs.com]; FORGED_SENDER(0.00)[steve@sohara.org,4250.10.freebsd-questions=freebsd.org@email-od.com]; IP_SCORE(-0.23)[ip: (-0.57), ipnet: 142.0.176.0/22(-0.28), asn: 7381(-0.22), country: US(-0.08)]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:7381, ipnet:142.0.176.0/22, country:US]; RCVD_TLS_LAST(0.00)[]; FROM_NEQ_ENVFROM(0.00)[steve@sohara.org,4250.10.freebsd-questions=freebsd.org@email-od.com]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.97)[-0.970,0]; R_DKIM_ALLOW(-0.20)[email-od.com:s=dkim]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_SHORT(-0.33)[-0.326,0]; NEURAL_HAM_LONG(-1.00)[-0.997,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[sohara.org]; FORGED_SENDER_VERP_SRS(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[198.176.0.142.list.dnswl.org : 127.0.15.0]; ENVFROM_VERP(0.00)[]; FREEMAIL_CC(0.00)[googlemail.com] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Jan 2019 19:48:46 -0000 On Fri, 4 Jan 2019 16:14:06 +0000 Dave B via freebsd-questions wrote: > Understood re what ZFS can do, much the same as high end hardware > controllers with their own embedded software (BIOS) then.  I have never seen a hardware raid with block checksums and automatic repair of silent corruption. -- Steve O'Hara-Smith