From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail01.jit-creatives.de ([188.40.162.6]:37294 "EHLO mail01.jit-creatives.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751192AbaALTl1 (ORCPT ); Sun, 12 Jan 2014 14:41:27 -0500 To: Subject: RAID 1 with no data on it when accidentally switched HDD MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Date: Sun, 12 Jan 2014 20:35:21 +0100 From: Ingo Ebel Message-ID: <7e169377e2a149281902ebbce55a9f7e@www.jitmail.de> Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hi, I'm not sure whether it's a bug in btrfs or my distro but I discovered an odd behavior today. My Setup: * Btrfs v3.12+20131125 * /dev/sda – Boot OS - opensuse 13.1 * Btrfs RAID 1 on /dev/sdb1 and /dev/sdc1 I added an extra HDD with an other OS and Data on it witch accidentally became /dev/sdc. Btrfs got mounted at boot time without any complains but in the main volume was empty. Some subvolumes still had Data. I took the extra HDD out but still no data in the Btrfs main volume. Bfrfsck reported no error. Some Parts on the (accidentally) /dev/sdc are now corrupt. I would expect that btrfs would throw an error when getting in the kind of scenario. Regards Ingo