From owner-freebsd-fs@FreeBSD.ORG Tue Jan 6 15:11:36 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 B56C3773 for ; Tue, 6 Jan 2015 15:11:36 +0000 (UTC) Received: from mail-oi0-x233.google.com (mail-oi0-x233.google.com [IPv6:2607:f8b0:4003:c06::233]) (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 757DE1D93 for ; Tue, 6 Jan 2015 15:11:36 +0000 (UTC) Received: by mail-oi0-f51.google.com with SMTP id h136so18905160oig.10 for ; Tue, 06 Jan 2015 07:11:35 -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=i5fqF6U3bBDoUOu7xe3D3T9rgGDcwyMlOxmRUTxc1qA=; b=t9CnFXiuVvWFhyMHWY2OwEtJOQCpYfBuYH7C7TxnyFk/CL9Ci90FFOWShxNUrj85sQ r1/hhujFMK6NKrlBxULn5zzq9IaPnHOdq+fJjXlHWL4u/V646YrevYjweYaXijOpdFEU VZArIDXq/VqVrpMzckw+0JnHgrrm/yycHvpf/Lr7GaQWcHluo3q5pUxDTjUBjLcsKgPB w5Gv84W210XsY9Eh7mNNqLEDWRWGPpE9MFozv+ia9CyJ1ZxGVAvpN2tcSB0mngEmTyJK elYH8x2KrQa5P3xFjz/VS4cUiIMXAnzkFT0ab4/NA/IgL0I4dERJSEbzG/jKaikgknUT FXuQ== X-Received: by 10.182.149.164 with SMTP id ub4mr55193300obb.1.1420557095757; Tue, 06 Jan 2015 07:11:35 -0800 (PST) MIME-Version: 1.0 Received: by 10.182.169.71 with HTTP; Tue, 6 Jan 2015 07:11:15 -0800 (PST) In-Reply-To: <54ABFA82.2070401@internetx.com> References: <20FB5F2C-65D2-4F33-8D45-DD7FC34A5E2E@ultra-secure.de> <54ABFA82.2070401@internetx.com> From: Fervent Dissent Date: Tue, 6 Jan 2015 23:11:15 +0800 Message-ID: Subject: Re: zfs corruption after controller failure To: jg@internetx.com 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 15:11:36 -0000 I tried these, and some variations of them, and it gave the error the pool does not exist. zpool import -N -o readonly=3Don -f -R /pool zpool import -N -o readonly=3Don -f -R /pool -F -T On Tue, Jan 6, 2015 at 11:08 PM, InterNetX - Juergen Gotteswinter < jg@internetx.com> wrote: > > external usb drive (for sure cheap consumer desktop one) > > cheap (maybe even buggy) usb controller > > non-mirrored / raidz > > probably cheap hardware at all (no ecc, like rainer mentioned for > example) > > what do you expect. zfs is very tolerant, but some basics should be > taken care of... > > but even with a single disk it should be possible to recover / import > the pool at least read only > > > > Am 06.01.2015 um 16:06 schrieb Fervent Dissent: > > 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 = single > disk > >> and that disk/pool shows errors or becomes unreadable/corrupted/whatev= er > >> you cannot recover it. > >> > >> Same for not using ECC memory=E2=80=A6 > >> > >> > >> > >> > > _______________________________________________ > > freebsd-fs@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" > > >