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From: Chris Murphy <lists@colorremedies.com>
To: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: device delete, error removing device
Date: Sun, 21 Oct 2012 23:30:35 -0600	[thread overview]
Message-ID: <3B556B53-DA37-49C6-B634-FF648FED3B0F@colorremedies.com> (raw)
In-Reply-To: <5084D3F2.8030506@parallels.com>


On Oct 21, 2012, at 11:04 PM, dima <dolenin@parallels.com> wrote:

> Might be you need to balance first after adding a new disk
> btrfs filesystem balance /mnt

Good idea, although I'd argue this is potentially a huge problem if a large file system needed to be rebalanced (could take days or weeks) before removing a device. It'd likely fail in a real scenario by then. But here is the attempt:


[root@f18v ~]# btrfs fi balance /mnt
ERROR: error during balancing '/mnt' - No space left on device
There may be more info in syslog - try dmesg | tail

[ 5860.532696] btrfs: relocating block group 11070865408 flags 18
[ 5860.557268] btrfs: found 1 extents
[ 5860.573295] btrfs: relocating block group 10996416512 flags 20
[ 5860.590275] btrfs: relocating block group 10694426624 flags 20
[ 5860.616739] btrfs: relocating block group 10576199680 flags 20
[ 5860.901766] btrfs: found 2690 extents
[ 5860.923053] btrfs: relocating block group 9706930176 flags 9
[ 5863.197821] btrfs: found 4 extents
[ 5864.066177] btrfs: found 4 extents
[ 5864.086322] btrfs: 8 enospc errors during balance


Chris Murphy

  reply	other threads:[~2012-10-22  5:37 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-22  4:32 device delete, error removing device Chris Murphy
2012-10-22  5:04 ` dima
2012-10-22  5:30   ` Chris Murphy [this message]
2012-10-22  6:02 ` Chris Murphy
2012-10-22  9:19   ` Hugo Mills
2012-10-22 16:42     ` Chris Murphy
2012-10-22 17:04       ` Goffredo Baroncelli
2012-10-22 19:36         ` Chris Murphy
2012-10-22 19:50           ` Hugo Mills
2012-10-22 20:35             ` Goffredo Baroncelli
2012-10-22 20:46             ` Chris Murphy
2012-10-22 17:18       ` Hugo Mills
2012-10-23  7:57         ` Michael Kjörling
2012-10-23 18:10           ` Goffredo Baroncelli
2012-10-23 18:17             ` Chris Murphy
2012-10-23 19:02               ` Goffredo Baroncelli
2012-10-23 20:28                 ` Chris Murphy
2012-10-23 22:16                   ` Goffredo Baroncelli
2012-10-23 22:29                     ` Chris Murphy
2012-10-24 18:06                       ` device delete, error removing device [SOLVED] Goffredo Baroncelli
2012-10-24 19:13                         ` Chris Murphy
2012-10-24 21:30                           ` Goffredo Baroncelli
2012-10-24 21:43                             ` Chris Murphy
2012-10-25 19:26                               ` Goffredo Baroncelli
2012-10-27 18:25                                 ` device delete, error removing device Chris Murphy

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