From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org ([80.91.229.3]:34203 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756586AbbEEHfE (ORCPT ); Tue, 5 May 2015 03:35:04 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1YpXNe-0001y0-Qv for linux-btrfs@vger.kernel.org; Tue, 05 May 2015 09:35:03 +0200 Received: from c-24-5-205-109.hsd1.ca.comcast.net ([24.5.205.109]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 05 May 2015 09:35:02 +0200 Received: from obiwantje by c-24-5-205-109.hsd1.ca.comcast.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 05 May 2015 09:35:02 +0200 To: linux-btrfs@vger.kernel.org From: TheJay Subject: Re: [REQ] Help to gain access to btrfsraid6 pool that won't mount Date: Tue, 5 May 2015 07:30:18 +0000 (UTC) Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Tue, 05 May 2015 00:48:35 -0600, Chris Murphy wrote: > On Mon, May 4, 2015 at 9:44 AM, TheJay wrote: >> $ sudo btrfs fi show >> Label: 'roms03' uuid: b0025417-4045-4c63-a432-0625b7cc41ea >> Total devices 4 FS bytes used 2.67TiB >> devid 1 size 1.36TiB used 1.36TiB path /dev/sdz >> devid 3 size 1.36TiB used 1.36TiB path /dev/sdaa >> devid 4 size 1.36TiB used 1.36TiB path /dev/sdab >> *** Some devices missing > > How many devices are missing? > >> [Mon May 4 08:35:08 2015] BTRFS: failed to read chunk tree on sdz > > That's not good. What do you get for 'btrfs check" (without --repair)? > > -- > Chris Murphy Appriciate the response Chris > How many devices are missing? One (1) of the 4 devices is missing - "device 2". > What do you get for 'btrfs check" (without --repair)? $ btrfs check /dev/sdaa warning, device 2 is missing warning devid 2 not found already checksum verify failed on 21200896 found 44715E95 wanted A092E323 checksum verify failed on 21200896 found 91AC994F wanted 987F5E0F checksum verify failed on 21200896 found 44715E95 wanted A092E323 bytenr mismatch, want=21200896, have=65536 Couldn't read chunk tree Couldn't open file system