From owner-freebsd-questions@freebsd.org Fri Jul 24 20:01:31 2020 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 993AE372443 for ; Fri, 24 Jul 2020 20:01:31 +0000 (UTC) (envelope-from 4250.82.1d4c2000581b6c8.ada1277fe93d70bcb9274fd45f5798dd@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-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4BD0T7141Kz4CNY for ; Fri, 24 Jul 2020 20:01:30 +0000 (UTC) (envelope-from 4250.82.1d4c2000581b6c8.ada1277fe93d70bcb9274fd45f5798dd@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=1595620891; x=1598212891; h=content-transfer-encoding:content-type:mime-version:references:in-reply-to:message-id:subject:cc:to:from:date:x-thread-info; bh=bq9vMflVzFfixICzrOSNdxcge1SiSK+IyFDW8jI+R+4=; b=mFcOQLKbcBY8K4pWm+C2U+HG9Sy01Ff/3FsoGv5HwCUyeUfit9APsFrT0sLx+HBJMXhGCcFKW1Ux8z6CysCW1eqcMYerae0F7bzoiTZ2pOSUiSwFRieEl/Fdvzjfan354BVNsE3rzhJ2UJfxHv3eUU/ioBeeSVooctRdW4Yt6iM= X-Thread-Info: NDI1MC45Mi4xZDRjMjAwMDU4MWI2YzguZnJlZWJzZC1xdWVzdGlvbnM9ZnJlZWJzZC5vcmc= Received: from r1.us-east-2.aws.in.socketlabs.com (r1.us-east-2.aws.in.socketlabs.com [142.0.189.1]) by mxsg2.email-od.com with ESMTP(version=Tls12 cipher=Aes256 bits=256); Fri, 24 Jul 2020 16:01:30 -0400 Received: from smtp.lan.sohara.org (EMTPY [185.202.17.215]) by r1.us-east-2.aws.in.socketlabs.com with ESMTP(version=Tls12 cipher=Aes256 bits=256); Fri, 24 Jul 2020 16:01:29 -0400 Received: from [192.168.63.1] (helo=steve.lan.sohara.org) by smtp.lan.sohara.org with smtp (Exim 4.92.3 (FreeBSD)) (envelope-from ) id 1jz3sl-000Neq-E0; Fri, 24 Jul 2020 21:01:27 +0100 Date: Fri, 24 Jul 2020 21:01:27 +0100 From: Steve O'Hara-Smith To: Aryeh Friedman Cc: Ralf Mardorf , FreeBSD Mailing List , Paul Pathiakis Subject: Re: Ask stupid questions and you'll get a stupid answers, was: Technological advantages over Linux Message-Id: <20200724210127.7d05e22bd81b95388adf32ba@sohara.org> In-Reply-To: References: <20200214121620.GA80657@admin.sibptus.ru> <20200214141600.GA82559@admin.sibptus.ru> <20200214204838.360c8f624397c659946bd764@sohara.org> <20200215063818.GE1482@admin.sibptus.ru> <20200215083359.367d8a3e9ddb4942df67d5b5@sohara.org> <58202623-bbf7-eda0-5cb5-fb4749e91e20@watters.ws> <6318251A-973A-4DEC-9271-12333EB11F7B@kicp.uchicago.edu> <800f33cd-0dc1-1ae9-2262-a374bf8c10dd@kicp.uchicago.edu> <20200724170348.51f108ec@archlinux> <1273868562.6647660.1595604615652@mail.yahoo.com> <20200724183331.6363d69c@archlinux> 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=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4BD0T7141Kz4CNY X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=pass header.d=email-od.com header.s=dkim header.b=mFcOQLKb; dmarc=none; spf=pass (mx1.freebsd.org: domain of 4250.82.1d4c2000581b6c8.ada1277fe93d70bcb9274fd45f5798dd@email-od.com designates 142.0.176.198 as permitted sender) smtp.mailfrom=4250.82.1d4c2000581b6c8.ada1277fe93d70bcb9274fd45f5798dd@email-od.com X-Spamd-Result: default: False [-0.86 / 15.00]; R_SPF_ALLOW(-0.20)[+ip4:142.0.176.0/20:c]; MV_CASE(0.50)[]; RCVD_COUNT_THREE(0.00)[4]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[email-od.com:+]; NEURAL_HAM_SHORT(-0.69)[-0.686]; FREEMAIL_TO(0.00)[gmail.com]; FORGED_SENDER(0.30)[steve@sohara.org,4250.82.1d4c2000581b6c8.ada1277fe93d70bcb9274fd45f5798dd@email-od.com]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:7381, ipnet:142.0.176.0/22, country:US]; MID_RHS_MATCH_FROM(0.00)[]; FROM_NEQ_ENVFROM(0.00)[steve@sohara.org,4250.82.1d4c2000581b6c8.ada1277fe93d70bcb9274fd45f5798dd@email-od.com]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.03)[-1.027]; R_DKIM_ALLOW(-0.20)[email-od.com:s=dkim]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; NEURAL_HAM_LONG(-0.94)[-0.944]; TAGGED_RCPT(0.00)[]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[sohara.org]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[142.0.176.198:from]; RWL_MAILSPIKE_VERYGOOD(0.00)[142.0.176.198:from]; FREEMAIL_CC(0.00)[riseup.net,freebsd.org,yahoo.com]; SUSPICIOUS_RECIPS(1.50)[] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Jul 2020 20:01:31 -0000 On Fri, 24 Jul 2020 14:09:15 -0400 Aryeh Friedman wrote: > spent 7 weeks denying that it was needed because they did block level disk > backups (I would love to hear from any DBA who would trust such > backups!!!) Well so long as it streamed all changes to the backup in real time and was guaranteed never to lose a block no matter what then I might trust it for hot swap purposes but not for disaster recovery. -- Steve O'Hara-Smith