From nobody Fri Nov 17 07:08:36 2023 X-Original-To: questions@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4SWp0g4nsRz51bth for ; Fri, 17 Nov 2023 07:08:51 +0000 (UTC) (envelope-from 4250.82.1d5060004e7a1e2.5cae991fc8a321382081c855601ad9ff@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 4SWp0f23cTz4PfY for ; Fri, 17 Nov 2023 07:08:50 +0000 (UTC) (envelope-from 4250.82.1d5060004e7a1e2.5cae991fc8a321382081c855601ad9ff@email-od.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=email-od.com header.s=dkim header.b=hpHxh0Uo; spf=pass (mx1.freebsd.org: domain of 4250.82.1d5060004e7a1e2.5cae991fc8a321382081c855601ad9ff@email-od.com designates 142.0.176.198 as permitted sender) smtp.mailfrom=4250.82.1d5060004e7a1e2.5cae991fc8a321382081c855601ad9ff@email-od.com; dmarc=none DKIM-Signature: v=1; a=rsa-sha256; d=email-od.com;i=@email-od.com;s=dkim; c=relaxed/relaxed; q=dns/txt; t=1700204930; x=1702796930; h=content-transfer-encoding:content-type:mime-version:references:in-reply-to:message-id:subject:to:from:date:x-thread-info:subject:to:from:cc:reply-to; bh=FO161rkTvUaoYJGVxUb3AtLh7DuSCeHODDq/Fr5fNJQ=; b=hpHxh0UoeOPcDdVMnG5wyPJIM21zjsw8jwpVQmftWlmcSaVag1GvA8LZm6fUVvy3RHYF+8dW6Vb2LAnnllR2+4s2i4T5jfZfMEHKlZDEMfliPreI70Ce3/p697IfB9KWkCMLfFnPnJSgyuRXVoUi0JXSfD2VRNX+QKgNphGaM6Q= X-Thread-Info: NDI1MC4xMi4xZDUwNjAwMDRlN2ExZTIucXVlc3Rpb25zPWZyZWVic2Qub3Jn Received: from r1.h.in.socketlabs.com (r1.h.in.socketlabs.com [142.0.180.11]) by mxsg2.email-od.com with ESMTP(version=Tls12 cipher=Aes256 bits=256); Fri, 17 Nov 2023 02:08:38 -0500 Received: from smtp.lan.sohara.org (EMTPY [185.202.17.215]) by r1.h.in.socketlabs.com with ESMTP(version=Tls12 cipher=Aes256 bits=256); Fri, 17 Nov 2023 02:08:38 -0500 Received: from [192.168.63.1] (helo=steve.lan.sohara.org) by smtp.lan.sohara.org with smtp (Exim 4.95 (FreeBSD)) (envelope-from ) id 1r3sxx-0006Ic-3X for questions@freebsd.org; Fri, 17 Nov 2023 07:08:37 +0000 Date: Fri, 17 Nov 2023 07:08:36 +0000 From: Steve O'Hara-Smith To: questions@freebsd.org Subject: Re: expand UFS partition Message-Id: <20231117070836.cb5b6763bba63fe9997b3688@sohara.org> In-Reply-To: References: <6f8c7df4-2665-4794-9fd2-81e47128232d@paz.bz> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; amd64-portbld-freebsd13.1) X-Clacks-Overhead: "GNU Terry Pratchett" List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spamd-Result: default: False [-2.70 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; MV_CASE(0.50)[]; FORGED_SENDER(0.30)[steve@sohara.org,4250.82.1d5060004e7a1e2.5cae991fc8a321382081c855601ad9ff@email-od.com]; R_DKIM_ALLOW(-0.20)[email-od.com:s=dkim]; R_SPF_ALLOW(-0.20)[+ip4:142.0.176.0/20]; MIME_GOOD(-0.10)[text/plain]; RWL_MAILSPIKE_POSSIBLE(0.00)[142.0.176.198:from]; RCVD_TLS_LAST(0.00)[]; MLMMJ_DEST(0.00)[questions@freebsd.org]; MIME_TRACE(0.00)[0:+]; FROM_NEQ_ENVFROM(0.00)[steve@sohara.org,4250.82.1d5060004e7a1e2.5cae991fc8a321382081c855601ad9ff@email-od.com]; ASN(0.00)[asn:7381, ipnet:142.0.176.0/22, country:US]; ARC_NA(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; MID_RHS_MATCH_FROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; DKIM_TRACE(0.00)[email-od.com:+]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; DMARC_NA(0.00)[sohara.org]; DWL_DNSWL_NONE(0.00)[email-od.com:dkim] X-Rspamd-Queue-Id: 4SWp0f23cTz4PfY X-Spamd-Bar: -- On Thu, 16 Nov 2023 21:05:31 +0000 Norman Gray wrote: > > On 16 Nov 2023, at 19:44, Edward Sanford Sutton, III wrote: > > > It is always easier to schedule downtime than it is to schedule data > > loss. > > I think I'm going to print this out and put it on the wall above my desk. > > (or put another way: 'Dear Boss: downtime or data-loss, pick one') At a PPOE where we made scale out filesystems based on FreeBSD one of the things we used to do was calculate and advertise "mean time to data loss" for various configurations of redundancy up to and including eight way mirrors (yes that one has a very long MTTDL - we used it for filesystem metadata). -- Steve O'Hara-Smith