From owner-freebsd-fs@freebsd.org Tue May 31 05:44:34 2016 Return-Path: Delivered-To: freebsd-fs@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 29FEEB55F19 for ; Tue, 31 May 2016 05:44:34 +0000 (UTC) (envelope-from esamorokov@gmail.com) Received: from mail-pf0-x22c.google.com (mail-pf0-x22c.google.com [IPv6:2607:f8b0:400e:c00::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id EF6701DD0 for ; Tue, 31 May 2016 05:44:33 +0000 (UTC) (envelope-from esamorokov@gmail.com) Received: by mail-pf0-x22c.google.com with SMTP id 62so26405202pfd.1 for ; Mon, 30 May 2016 22:44:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding; bh=aC3yeHVLCOBmP4+Z0nU84F8unEPHidVAmNH470dOGqs=; b=KOOjrYuxYYT6ibj/KnyW4nGFIyxmc9bWwP0VQFJpcjcsbLjeTCJt50h5kANZyb3RhV vci0qIvnDBKZ4VBpBzzfMGbyr3yrWO8/JnhTANlFeEv2majz7U5UEeF4mU83/zcE3Irb geMXw2Z0FbhNMB9tDHgW72e+cI3RQgmAx8dnzFXlIUv8DwLqnjXyOmt79BnBtds0Cxut IhbJ9aM8gPDpEMfCJZsFhdP53eCQs2/tY8pgHP5lckkxvE8EZEC0iE5dNeJ/203PcOXH Gl5PmFOJl1068xGUbGSG6vcIzTBLQ+ZLFI/Hyk3Bmf3WMj7/bZ8PThexqGq4N3UMToZr uKhg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=aC3yeHVLCOBmP4+Z0nU84F8unEPHidVAmNH470dOGqs=; b=FUqckb41cOnNbmb/0QQqeBqpvsI2SkGN3htPISUvnAul4zIpr5Sm7wrKKs4gKPDqKr HoPhwuTSZoz9EK7ax/Dmfo8f3eZB49JC42ddGsQFBgHr9UOMzttAAsFp/kSlZ7vK5MCm Szy0XArzEX9pnE2HYgxD8gQ8Lzp8Ug9fMLxwMrZXgEba7iHcq4E1MTaH/vDmUzedkd3u xEdBZa/BaFu4qQZuvsNfPjAA7WZbF1Z5G1ROh3fGDtnwxlb4Fiorj9pqsVwe/xULVPiR 6i+O9RMHFYhmCVlL1hNPQYtRmgJIyfU9G8XLokFjMVeLaesPOh8kpFhwLyclWld/e46U zffw== X-Gm-Message-State: ALyK8tI2kBrnc+Yfk34txQon8YQdqkw4Gz2bQaYsrz+dZlO3wij+21a5CuOovRp90dFVAw== X-Received: by 10.98.200.215 with SMTP id i84mr16108800pfk.28.1464673473344; Mon, 30 May 2016 22:44:33 -0700 (PDT) Received: from [192.168.2.60] ([65.78.190.115]) by smtp.googlemail.com with ESMTPSA id 7sm36858155pfn.30.2016.05.30.22.44.32 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 30 May 2016 22:44:32 -0700 (PDT) Subject: Re: ZFS - RAIDZ1 Recovery (Evgeny Sam) To: "Kevin P. Neal" References: <20160530202147.GA40137@neutralgood.org> Cc: freebsd-fs@freebsd.org From: esamorokov Message-ID: <574D24C0.20308@gmail.com> Date: Mon, 30 May 2016 22:44:32 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0 MIME-Version: 1.0 In-Reply-To: <20160530202147.GA40137@neutralgood.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 May 2016 05:44:34 -0000 Kevin, > The dd command when given the "conv=noerror,sync" option can be used to > duplicate an entire disk. Yes, I know Linux and of course I know dd with it's options, moreover that was the first thing I tried (after I went out of "panic mode" :) > Does R-Studio copy the entire disk including GPT specific parts, or does > it copy partitions of disks? I've been working with R-Studio for many years and absolutely sure that it does complete copy of the drive as it is, no matter what the file system is. > When you say a disk "failed", > what does that mean? First, ZFS showed the drive unavailable. Second, the disk has a bunch of bad sectors and took forever to copy first 500MB both with dd (conv=noerror,sync) and R-studio > I feel bad for you losing precious family history. Thanks for understanding, i appreciate it! As I already said earlier, I was in the middle of my backup server build, when it all happened :( > Anyway, have you asked for help on any OpenZFS list yet? No, I have not, but if you could direct me somwhere, it would be much appreciated! The Best Regards, Evgeny.