From owner-freebsd-fs@FreeBSD.ORG Tue Jan 6 15:06:26 2015 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 3DC685D4 for ; Tue, 6 Jan 2015 15:06:26 +0000 (UTC) Received: from mail-oi0-x231.google.com (mail-oi0-x231.google.com [IPv6:2607:f8b0:4003:c06::231]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id F36AF1D07 for ; Tue, 6 Jan 2015 15:06:25 +0000 (UTC) Received: by mail-oi0-f49.google.com with SMTP id a141so51841783oig.8 for ; Tue, 06 Jan 2015 07:06:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=Q4x79fu7/UV493QM1WEUUOp8GWLQwunnakOslrJJdKg=; b=YjRHEdFG9KkieuMwNEjWUaOUU44+BT6DB2mOHx647LcxBGmYt/Lkd8xhEw447tmyBg QPf0HNvLllz3uVIb+IV6Hj6IIRSqfMrpM52d+UbYEuwTtRMK5nOsBWSqld038SoteIpc 86e3dPxOhqCmLVrF16n82LI5pbH0KrO1mf/Z+5hDAQxPylK4fBFoEPxN18Q3yBejl60o 4CSIbso6WobH/ep5RMfyvhIfHGQR8BAMzHZlThLyIyt50eFfqSy3LmJZ4/k+CPD6x/jf QR7xKHF+baf9p1nlWHrQEPLvdqrRjlvQqP/Dgf35X4H5ejr6qXXpQWPpWJnYm7oGZNuo A3Tw== X-Received: by 10.202.135.78 with SMTP id j75mr15566966oid.106.1420556785361; Tue, 06 Jan 2015 07:06:25 -0800 (PST) MIME-Version: 1.0 Received: by 10.182.169.71 with HTTP; Tue, 6 Jan 2015 07:06:05 -0800 (PST) In-Reply-To: <20FB5F2C-65D2-4F33-8D45-DD7FC34A5E2E@ultra-secure.de> References: <20FB5F2C-65D2-4F33-8D45-DD7FC34A5E2E@ultra-secure.de> From: Fervent Dissent Date: Tue, 6 Jan 2015 23:06:05 +0800 Message-ID: Subject: Re: zfs corruption after controller failure To: Rainer Duffner Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 Cc: freebsd-fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Jan 2015 15:06:26 -0000 I've had power lose before and a previous bad controller cause multiple problems. The drive would disappear or go offline. I would clear it and go on no problem. This is the first failure that I have not been able to recover from. On Tue, Jan 6, 2015 at 11:01 PM, Rainer Duffner wrote: > > > Am 06.01.2015 um 15:58 schrieb Fervent Dissent < > walkerindarkness@gmail.com>: > > > > I have a external disk that was on a cheap usb controller, that > controller > > died. > > > Maybe I=E2=80=99m mistaken, but I though that if your pool only has a sin= gle disk > and that disk/pool shows errors or becomes unreadable/corrupted/whatever > you cannot recover it. > > Same for not using ECC memory=E2=80=A6 > > > >