From owner-freebsd-stable@freebsd.org Fri Jun 7 07:57:59 2019 Return-Path: Delivered-To: freebsd-stable@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 78CEA15CB21A for ; Fri, 7 Jun 2019 07:57:59 +0000 (UTC) (envelope-from steven@multiplay.co.uk) Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id DF07169BBB for ; Fri, 7 Jun 2019 07:57:57 +0000 (UTC) (envelope-from steven@multiplay.co.uk) Received: by mail-lf1-x12d.google.com with SMTP id y13so872202lfh.9 for ; Fri, 07 Jun 2019 00:57:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=multiplay-co-uk.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=DDt8OlV6BF9mE5QSqQSQtV2/fAtZSULnFb4isl6c71Y=; b=ylzGWReTfmzKWxJ6uFO6VTmJV+uNaABmmVHORnm4f+DdoARm3bTDWiX1awl0D2L1o1 oYUyiJDbYjm83wM45bi193WhquFdOR+4uHmc4ZdIVTBl4YllbpLpM81toDMsRn5oL/LL 0FTKdaBGVreCAzloT2vhUqU2SjYM06NA/EFBALex181KKvDKRF8bSY/h0N7xI5rEGSxx emw5goypc5f46Wk4Bq2LD7DSLTC4eOljXewzLUc0OafZTrHZ/cceBQKlV64zoNi2zk9E Zl1g9itYIQvWbtbUDkYeFygOWMY1dzkit631XuL+70I+xG9BepmcN14y/L84i3Fjr1Bn rIcw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=DDt8OlV6BF9mE5QSqQSQtV2/fAtZSULnFb4isl6c71Y=; b=czrVcuxZwnP4PIwYq7Ojp1Zer6R0T8lRYa5dLHSN7IQzoGjMdWUSC90LPjnxLBpYv7 +BpHRJ3jTBvxAq+lNXMDc2gEzyPRRhm1nxnzJqYBLwFVaVNeGVQEd8TYgF8MffX6jm6J DLpZN7mrqqGmUTM+3zL7XGcKcDVrGdDtBRJsZMf9tn/CQtFVENCf6aaPJKtrFc2HHiq9 o7nJ5qnL/1/mQGcO27BJ3VdllEKg9lSAiW4q8guG4Miaov4oC+wQdSn+FfwAvTRqZJPe FckQLXweXsK7/b54YBssTTYe9iAEDetKN88YtJYN4FbYM7IIZR22KLKvT63/9Iu7Ytnc XoOA== X-Gm-Message-State: APjAAAUZ+rALA4956wocnNaPDVxGJ18J2C2S901TreXCB3qX08D0lGpI iOPLkIE0bagUNfBTDUKveOHOZ2kMuHbTdlwdk0AwPHsp X-Google-Smtp-Source: APXvYqzJ7qE2Hs65n9ab9xu11pRYOrciVS/XOtfm9uRu3+26vYAxYFt/PAImKwc/O79bkKUywFKiD90dOT2jGGwk5HA= X-Received: by 2002:ac2:52ac:: with SMTP id r12mr3442389lfm.126.1559894276086; Fri, 07 Jun 2019 00:57:56 -0700 (PDT) MIME-Version: 1.0 References: <30506b3d-64fb-b327-94ae-d9da522f3a48@sorbs.net> <70fac2fe3f23f85dd442d93ffea368e1@ultra-secure.de> <70C87D93-D1F9-458E-9723-19F9777E6F12@sorbs.net> <5ED8BADE-7B2C-4B73-93BC-70739911C5E3@sorbs.net> <2e4941bf-999a-7f16-f4fe-1a520f2187c0@sorbs.net> <34539589-162B-4891-A68F-88F879B59650@sorbs.net> <576857a5-a5ab-eeb8-2391-992159d9c4f2@denninger.net> <7DBA7907-BE8F-4944-9A71-86E5AC1B85CA@gromit.dlib.vt.edu> <5c458075-351f-6eb6-44aa-1bd268398343@sorbs.net> <289FE04E-1692-4763-96B3-91E8C1BBBBD6@sorbs.net> <70d5e0d3-c188-7f06-cf53-702d565fd481@sorbs.net> In-Reply-To: <70d5e0d3-c188-7f06-cf53-702d565fd481@sorbs.net> From: Steven Hartland Date: Fri, 7 Jun 2019 08:57:45 +0100 Message-ID: Subject: Re: ZFS... To: Michelle Sullivan Cc: freebsd-stable X-Rspamd-Queue-Id: DF07169BBB X-Spamd-Bar: ----- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=multiplay-co-uk.20150623.gappssmtp.com header.s=20150623 header.b=ylzGWReT; spf=pass (mx1.freebsd.org: domain of steven@multiplay.co.uk designates 2a00:1450:4864:20::12d as permitted sender) smtp.mailfrom=steven@multiplay.co.uk X-Spamd-Result: default: False [-5.23 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; R_DKIM_ALLOW(-0.20)[multiplay-co-uk.20150623.gappssmtp.com:s=20150623]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-stable@freebsd.org]; DMARC_NA(0.00)[multiplay.co.uk]; MX_GOOD(-0.01)[ASPMX.L.GOOGLE.COM,ALT2.ASPMX.L.GOOGLE.COM,ALT1.ASPMX.L.GOOGLE.COM,ASPMX3.GOOGLEMAIL.COM,ASPMX2.GOOGLEMAIL.COM]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[multiplay-co-uk.20150623.gappssmtp.com:+]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[d.2.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.5.4.1.0.0.a.2.list.dnswl.org : 127.0.5.0]; SUBJ_ALL_CAPS(0.45)[6]; NEURAL_HAM_SHORT(-0.73)[-0.731,0]; IP_SCORE(-2.73)[ip: (-8.99), ipnet: 2a00:1450::/32(-2.33), asn: 15169(-2.30), country: US(-0.06)]; FORGED_SENDER(0.30)[killing@multiplay.co.uk,steven@multiplay.co.uk]; MIME_TRACE(0.00)[0:+,1:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; FROM_NEQ_ENVFROM(0.00)[killing@multiplay.co.uk,steven@multiplay.co.uk]; RCVD_COUNT_TWO(0.00)[2] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Jun 2019 07:57:59 -0000 Great to hear you got your data back even after all the terrible luck you suffered! Regards Steve On Fri, 7 Jun 2019 at 00:49, Michelle Sullivan wrote: > Michelle Sullivan wrote: > >> On 02 May 2019, at 03:39, Steven Hartland > wrote: > >> > >> > >> > >>> On 01/05/2019 15:53, Michelle Sullivan wrote: > >>> Paul Mather wrote: > >>>>> On Apr 30, 2019, at 11:17 PM, Michelle Sullivan > wrote: > >>>>> > >>>>> Been there done that though with ext2 rather than UFS.. still got > all my data back... even though it was a nightmare.. > >>>> > >>>> Is that an implication that had all your data been on UFS (or ext2:) > this time around you would have got it all back? (I've got that impression > through this thread from things you've written.) That sort of makes it > sound like UFS is bulletproof to me. > >>> Its definitely not (and far from it) bullet proof - however when the > data on disk is not corrupt I have managed to recover it - even if it has > been a nightmare - no structure - all files in lost+found etc... or even > resorting to r-studio in the even of lost raid information etc.. > >> Yes but you seem to have done this with ZFS too, just not in this > particularly bad case. > >> > > There is no r-studio for zfs or I would have turned to it as soon as > this issue hit. > > > > > > > So as an update, this Company: http://www.klennet.com/ produce a ZFS > recovery tool: https://www.klennet.com/zfs-recovery/default.aspx and > following several code changes due to my case being an 'edge case' the > entire volume (including the zvol - which I previously recovered as it > wasn't suffering from the metadata corruption) and all 34 million files > is being recovered intact with the entire directory structure. Its only > drawback is it's a windows only tool, so I built 'windows on a stick' > and it's running from that. The only thing I had to do was physically > pull the 'spare' out as the spare already had data on it from being > previously swapped in and it confused the hell out of the algorithm that > detects the drive order. > > Regards, > > Michelle > > -- > Michelle Sullivan > http://www.mhix.org/ > >