From owner-freebsd-fs@FreeBSD.ORG Wed Jun 20 22:44:17 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id B13FE106566B for ; Wed, 20 Jun 2012 22:44:17 +0000 (UTC) (envelope-from rincebrain@gmail.com) Received: from mail-pz0-f54.google.com (mail-pz0-f54.google.com [209.85.210.54]) by mx1.freebsd.org (Postfix) with ESMTP id 823A48FC0C for ; Wed, 20 Jun 2012 22:44:17 +0000 (UTC) Received: by dadv36 with SMTP id v36so11357740dad.13 for ; Wed, 20 Jun 2012 15:44:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=zAn8/GGEP+Fm1/v8H2Q+DeFwPSsTsWNvoT4ij62IMdg=; b=AInlsiSJa0/FR77vDcxAjDnLqWo3xpae05Ibp7fGC4iYHJm08GrOzomP2CnQE8qny9 p6Ohbn/YSPkj6rgtaI1R2uxeUJOrzcaomHIE6wR51HuXuYsAegjJ2gV9bHvtjYBSw3CP qikmkiCG58d4tBS9sffagG4poAeVcSCbzflgHeecJYBJhtq5GF2zldC2bFJTJdYaBEnA ZxeddkAtlP1LIXgeJmUw/rYQRH0DpF/+//FSjEyj5jHBZfu2Q99QrXhLtwlWt1M4imXy VZhJKv10HfWk4hiR629MwzSc0CPM6tqAjtO/LO8tvSP8bGerLlOLtYCfqZwNfmVBlghV XYuA== MIME-Version: 1.0 Received: by 10.68.222.38 with SMTP id qj6mr81333030pbc.6.1340232255027; Wed, 20 Jun 2012 15:44:15 -0700 (PDT) Sender: rincebrain@gmail.com Received: by 10.68.38.10 with HTTP; Wed, 20 Jun 2012 15:44:15 -0700 (PDT) In-Reply-To: References: <566221263.21373.1340225701396.JavaMail.root@sz0192a.westchester.pa.mail.comcast.net> Date: Wed, 20 Jun 2012 18:44:15 -0400 X-Google-Sender-Auth: jaEawlKC37L7nW--eLctfqS7Rzk Message-ID: From: Rich To: Steven Hartland Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-fs@freebsd.org, rondzierwa@comcast.net Subject: Re: ZFS Checksum errors X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Jun 2012 22:44:17 -0000 I can't speak for every case, but in my experience, that's what happens if the corrupted data points to something that no longer exists because it was deleted or similar - as an example I don't recommend trying, you could figure out which on-disk blocks map to a test file, scramble some of them beyond repair on enough disks to be unrecoverable, do a scrub, and it'll report that file as lost - delete the file, the reference will change to a pointer with no name. - Rich On Wed, Jun 20, 2012 at 5:17 PM, Steven Hartland wrote: > Sorry not seen that before I'm afraid. Maybe you can use zdb to get more = info but sounds like something is causing nasty issues. > > I'd check your machine for bad hardware issues such as bad ram, cpu or ca= bling issues. > > =C2=A0 =C2=A0Regards > =C2=A0 =C2=A0Steve > =C2=A0----- Original Message ----- > =C2=A0From: rondzierwa@comcast.net > =C2=A0To: Steven Hartland > =C2=A0Cc: freebsd-fs@freebsd.org > =C2=A0Sent: Wednesday, June 20, 2012 9:55 PM > =C2=A0Subject: Re: ZFS Checksum errors > > > =C2=A0Steve. > > =C2=A0well, it got done, and it found another anonymous file with errors.= =C2=A0any idea how to get rid of these? > > =C2=A0thanks, > =C2=A0ron. > > > > =C2=A0phoenix# zpool status -v zfsPool > =C2=A0 =C2=A0pool: zfsPool > =C2=A0 state: ONLINE > =C2=A0status: One or more devices has experienced an error resulting in d= ata > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0corruption. =C2=A0Applications may be a= ffected. > =C2=A0action: Restore the file in question if possible. =C2=A0Otherwise r= estore the > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0entire pool from backup. > =C2=A0 =C2=A0 see: http://www.sun.com/msg/ZFS-8000-8A > =C2=A0 scrub: scrub completed after 8h29m with 6276 errors on Wed Jun 20 = 16:18:01 2012 > =C2=A0config: > > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0NAME =C2=A0 =C2=A0 =C2=A0 =C2=A0STATE = =C2=A0 =C2=A0 READ WRITE CKSUM > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0zfsPool =C2=A0 =C2=A0 ONLINE =C2=A0 =C2= =A0 =C2=A0 0 =C2=A0 =C2=A0 0 6.17K > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0da0 =C2=A0 =C2=A0 =C2=A0 ONLINE = =C2=A0 =C2=A0 =C2=A0 0 =C2=A0 =C2=A0 0 13.0K =C2=A01.34M repaired > > =C2=A0errors: Permanent errors have been detected in the following files: > > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0zfsPool/raid:<0x9e241> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0zfsPool/Build:<0x0> > =C2=A0phoenix# > > > > > > -------------------------------------------------------------------------= ----- > =C2=A0From: "Steven Hartland" > =C2=A0To: rondzierwa@comcast.net, freebsd-fs@freebsd.org > =C2=A0Sent: Wednesday, June 20, 2012 1:58:20 PM > =C2=A0Subject: Re: ZFS Checksum errors > > =C2=A0----- Original Message ----- > =C2=A0From: > =C2=A0.. > > =C2=A0> zpool status indicates that a file has errors, but doesn't tell m= e its name: > =C2=A0> > =C2=A0> phoenix# zpool status -v zfsPool > =C2=A0> pool: zfsPool > =C2=A0> state: ONLINE > =C2=A0> status: One or more devices has experienced an error resulting in= data > =C2=A0> corruption. Applications may be affected. > =C2=A0> action: Restore the file in question if possible. Otherwise resto= re the > =C2=A0> entire pool from backup. > =C2=A0> see: http://www.sun.com/msg/ZFS-8000-8A > =C2=A0> scrub: scrub in progress for 5h27m, 18.71% done, 23h42m to go > > =C2=A0Try waiting for the scrub to complete and see if its more helpful a= fter that. > > =C2=A0 =C2=A0 =C2=A0Regards > =C2=A0 =C2=A0 =C2=A0Steve > > =C2=A0=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D > =C2=A0This e.mail is private and confidential between Multiplay (UK) Ltd.= and the person or entity to whom it is addressed. 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