Displaying 20 results from an estimated 3000 matches similar to: "Some questions after devices addition to existing raid 1 btrfs filesystem"
2012 Sep 05
3
BTRFS thinks device is busy [kernel 3.5.3]
Hi,
I''m running OpenSuse 12.2 with kernel 3.5.3
HBA= LSI 1068e using the MPTSAS driver (patched)
(https://patchwork.kernel.org/patch/1379181/)
SANOS1:/media # uname -a
Linux SANOS1 3.5.3 #3 SMP Sun Sep 2 18:44:37 CEST 2012 x86_64 x86_64
x86_64 GNU/Linux
I''ve tried to simulate a disk replacement but it seems that now
/dev/sdg is stuck in the btrfs pool (RAID10)
SANOS1:/media #
2012 Oct 21
3
unrecognized mount option 'compression=lzo' and defragment -c errors
Hi,
I planned to boost my btrfs performance today. here some errors I met:
my ''btrfs filesystem show'' result:
~ # btrfs filesystem show
failed to read /dev/sr0
Label: none uuid: 9b9aa9d9-760e-445c-a0ab-68e102d9f02e
Total devices 1 FS bytes used 36.59GB
devid 1 size 49.52GB used 49.52GB path /dev/sda6
Label: none uuid: 559dec06-4fd0-47c1-97b8-cc4fa6153fa0
2012 Apr 20
44
Ceph on btrfs 3.4rc
After running ceph on XFS for some time, I decided to try btrfs again.
Performance with the current "for-linux-min" branch and big metadata
is much better. The only problem (?) I''m still seeing is a warning
that seems to occur from time to time:
[87703.784552] ------------[ cut here ]------------
[87703.789759] WARNING: at fs/btrfs/inode.c:2103
2013 Jun 05
8
btrfs raid1 on 16TB goes read-only after "btrfs: block rsv returned -28"
Dear Devs,
I have x4 4TB HDDs formatted with:
mkfs.btrfs -L bu-16TB_0 -d raid1 -m raid1 /dev/sd[cdef]
/etc/fstab mounts with the options:
noatime,noauto,space_cache,inode_cache
All on kernel 3.8.13.
Upon using rsync to copy some heavily hardlinked backups from ReiserFS,
I''ve seen:
The following "block rsv returned -28" is repeated 7 times until there
is a call trace
2012 Jun 08
2
btrfs filesystems can only be mounted after an unclean shutdown if btrfsck is run and immediately killed!
Hi all,
I have two multi-disk btrfs filesystems on a Arch linux 3.4.0 system.
After a power failure, both filesystems refuse to mount
[ 10.402284] Btrfs loaded
[ 10.402714] device fsid 1e7c18a4-02d6-44b1-8eaf-c01378009cd3 devid 4
transid 65282 /dev/sdc
[ 10.403108] btrfs: force zlib compression
[ 10.403130] btrfs: enabling inode map caching
[ 10.403152] btrfs: disk space caching is
2013 Aug 11
2
(un)mounting takes a long time
Hello!
I''m using ArchLinux with kernel Linux horus 3.10.5-1-ARCH #1 SMP PREEMPT.
Mounting and unmounting takes a long time:
# time mount -v /mnt/Archiv
mount: /dev/sde1 mounted on /mnt/Archiv.
mount -v /mnt/Archiv 0,00s user 0,16s system 1% cpu 9,493 total
# sync && time umount -v /mnt/Archiv
umount: /mnt/Archiv (/dev/sdd1) unmounted
umount -v /mnt/Archiv 0,00s user
2012 Jun 15
6
[PATCH] Btrfs: add "nocompress" mount option
In btrfs if we mount with "compress" we have no way to disable
compressing by remounting
(mount -o remount /mnt/btrfs), only by unmounting and mounting without
"compress".
This patch adds "nocompress" mount option which can be used to remount
the filesystem without compression:
# mount -o remount,nocompress /mnt/btrfs
This option is usefull in cases when we have a
2011 Aug 23
40
[PATCH 00/21] [RFC] Btrfs: restriper
Hello,
This patch series adds an initial implementation of restriper (it''s a
clever name for relocation framework that allows to do selective profile
changing and selective balancing with some goodies like pausing/resuming
and reporting progress to the user.
Profile changing is global (per-FS) so far, per-subvolume profiles
require some discussion and can be implemented in future.
2011 Nov 11
1
[PATCH] btrfs: rename the option to nospace_cache
Rename no_space_cache option to nospace_cache to be more consistent with
the rest, where the simple prefix ''no'' is used to negate an option.
The option has been introduced during the -rc1 cycle and there are has not been
widely used, so it''s safe.
Signed-off-by: David Sterba <dsterba@suse.cz>
---
fs/btrfs/super.c | 4 ++--
1 files changed, 2 insertions(+), 2
2012 Jul 09
6
3.5.0-rc6: btrfs and LVM snapshots -> wrong devicename in /proc/mounts
Hi,
using btrfs with LVM snapshots seems to be confusing /proc/mounts
After mounting a snapshot of an original filesystem, the devicename of the
original filesystem is overwritten with that of the snapshot in /proc/mounts.
Steps to reproduce:
arnd@kallisto:/mnt$ sudo mount /dev/vg0/original /mnt/original
[ 107.041432] device fsid 5c3e8ca2-da56-4ade-9fef-103a6a8a70c2 devid 1 transid 4
2009 Nov 14
2
[PATCH] btrfs-progs: Check mount status of multidevice filesystems
Some programs like btrfsck should not be run on a mounted filesystem.
This patch adds a check in btrfs_open_devices() for the mount status
of every device belonging to the filesystem. The function check_mount()
gets improved support for loopback devices. It now detects if the
program is run on the file that is being used by the loopback device.
Signed-off-by: Andi Drebes
2011 Mar 08
6
[PATCH v1 0/6] btrfs: scrub
This series adds an initial implementation for scrub. It works quite
straightforward. The usermode issues an ioctl for each device in the
fs. For each device, it enumerates the allocated device chunks. For
each chunk, the contained extents are enumerated and the data checksums
fetched. The extents are read sequentially and the checksums verified.
If an error occurs (checksum or EIO), a good copy
2013 Aug 19
11
[RFC PATCH] Btrfs: fix memory leak of orphan block rsv
When adding orphans to an inode''s root, we start a transaction for
that root that when ended in several places such as for example
extent-tree.c:btrfs_remove_block_group(), inode.c:btrfs_unlink() and
inode.c:btrfs_evict_node(), doesn''t result in a commit, that is,
inode.c:btrfs_orphan_commit_root() doesn''t get called (via
transaction.c:commit_fs_roots()).
The respective
2011 Dec 09
10
[PATCH 0/3] Btrfs: add IO error device stats
The goal is to detect when drives start to get an increased error rate,
when drives should be replaced soon. Therefore statistic counters are
added that count IO errors (read, write and flush). Additionally, the
software detected errors like checksum errors and corrupted blocks are
counted.
An ioctl interface is added to get the device statistic counters.
A second ioctl is added to atomically get
2012 Oct 07
29
BTRFS, getting darn slower everyday
Hi,
I have 4 machines, all converted to BTRFS about 6 months ago, now all
running Ubuntu Quantal with kernel 3.5.0-17
The matter is that all these machines are now getting slower and slower
everyday, every disk access causing the disk to be 100% busy for long
periods, to the point that I''m now seriously considering migrating
everything back to ext4...
From the start BTRFS was "not
2012 May 25
6
[PATCH v5 0/3] Btrfs: add IO error device stats
Changes v1-v2:
- Remove restriction that BTRFS_IOC_GET_DEVICE_STATS is a privileged
operation
- Cast u64 to unsigned long long for printf()
Changes v2-v3:
- Rebased on Chris'' current master
Changes v3-v4:
- Add padding at end of ioctl structure
Changes v4-v5:
- The statistic members in the ioctl are now organized as an array of
64 bit values. Symbolic names for the array indexes
2012 Mar 02
1
nocow flags
I set the C (NOCOW) and z (Not_Compressed) flags on a folder but the extent counts of files contained there keep increasing.
Said files are large and frequently modified but not changing in size. This does not happen when the filesystem is mounted with nodatacow.
I''m using this as a workaround since subvolumes can''t be mounted with different options simultaneously. ie. one with
2011 Apr 09
16
wrong values in "df" and "btrfs filesystem df"
Hallo, linux-btrfs,
First I create an array of 2 disks with
mkfs.btrfs -d raid0 -m raid1 /dev/sdb1 /dev/sdd1
and mount it at /srv/MM.
Then I fill it with about 1,6 TByte.
And then I add /dev/sde1 via
btrfs device add /dev/sde1 /srv/MM
btrfs filesystem balance /srv/MM
(it run about 20 hours)
Then I work on it, copy some new files, delete some old files - all
works well. Only
df
2012 Mar 20
13
[PATCH 0 of 3 v2] PV-GRUB: add support for ext4 and btrfs
Hi,
The following patches add support for ext4 and btrfs to
PV-GRUB. These patches are taken nearly verbatim from those provided
by Fedora and Gentoo.
We''ve been using these patches for the PV-GRUB images available in EC2
for some time now with no problems.
Changes from v1:
- Makefile has been changed to check the exit code from patch
- The btrfs patch has been rebased to apply
2011 Jun 10
6
[PATCH v2 0/6] btrfs: generic readeahead interface
This series introduces a generic readahead interface for btrfs trees.
The intention is to use it to speed up scrub in a first run, but balance
is another hot candidate. In general, every tree walk could be accompanied
by a readahead. Deletion of large files comes to mind, where the fetching
of the csums takes most of the time.
Also the initial build-ups of free-space-caches and