From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from moutng.kundenserver.de ([212.227.17.8]:50323 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750985AbaBHWCE (ORCPT ); Sat, 8 Feb 2014 17:02:04 -0500 Message-ID: <52F6A955.5020808@friedels.name> Date: Sat, 08 Feb 2014 23:01:57 +0100 From: Hendrik Friedel MIME-Version: 1.0 To: Martin Steigerwald CC: Chris Murphy , linux-btrfs Subject: Re: btrfsck does not fix References: <52C7127F.3060902@friedels.name> <0FFB7595-0A34-424C-BFC5-CCF6098A7801@colorremedies.com> <52D317CF.2070007@friedels.name> <6210673.6TYUkLGl6b@merkaba> <52DED1C2.60103@friedels.name> In-Reply-To: <52DED1C2.60103@friedels.name> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hello, > Ok. > I think, I do/did have some symptoms, but I cannot exclude other reasons.. > -High Load without high cpu-usage (io was the bottleneck) > -Just now: transfer from one directory to the other on the same > subvolume (from /mnt/subvol/A/B to /mnt/subvol/A) I get 1.2MB/s instead > of > 60. > -For some of the files I even got a "no space left on device" error. > > This is without any messages in dmesg or syslog related to btrfs. as I don't see that I can fix this, I intend to re-create the file-system. For that, I need to remove one of the two discs from the raid/filesystem, then create a new fs on this and move the data to it (I have no spare) Could you please advise me, wheather this will be successful? first some Information on the filesystem: ---------------- ./btrfs filesystem show /dev/sdb1 Label: none uuid: 989306aa-d291-4752-8477-0baf94f8c42f Total devices 2 FS bytes used 3.47TiB devid 1 size 2.73TiB used 1.74TiB path /dev/sdb1 devid 2 size 2.73TiB used 1.74TiB path /dev/sdc1 /btrfs subvolume list /mnt/BTRFS/Video ID 256 gen 226429 top level 5 path Video ID 1495 gen 226141 top level 5 path rsnapshot ID 4444 gen 226429 top level 256 path Snapshot ID 5845 gen 226375 top level 5 path backups btrfs fi df /mnt/BTRFS/Video/ Data, RAID0: total=3.48TB, used=3.47TB System, RAID1: total=32.00MB, used=260.00KB Metadata, RAID1: total=4.49GB, used=3.85GB -------------------- What I did already yesterday was: btrfs device delete /dev/sdc1 /mnt/BTRFS/rsnapshot/ btrfs device delete /dev/sdc1 /mnt/BTRFS/backups/ btrfs device delete /dev/sdc1 /mnt/BTRFS/Video/ btrfs filesystem balance start /mnt/BTRFS/Video/ next, I'm doing the balance for the subvolume /mnt/BTRFS/backups In parallel, I try to delete /mnt/BTRFS/rsnapshot, but it fails: btrfs subvolume delete /mnt/BTRFS/rsnapshot/ Delete subvolume '/mnt/BTRFS/rsnapshot' ERROR: cannot delete '/mnt/BTRFS/rsnapshot' - Inappropriate ioctl for device Why's that? But even more: How do I free sdc1 now?! Greetings, Hendrik