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randalla Tux's lil' helper
Joined: 14 Oct 2008 Posts: 79 Location: Seattle, WA
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Posted: Tue Apr 15, 2014 6:38 pm Post subject: btrfs: No space left on device when copying a large file |
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I'm attempting to use btrfs with compression on a ~400GiB drive. The drive itself is a hardware RAID5, and has nothing on it. All I've done is simply run mkfs.btrfs on it, and mounted it. When I copy over a particular directory that contains a file that is 1.99GiB, it fails with a message saying "No space left on device". By the time this happens, I'm only using about 6GiB of space on the drive, and it's always this file. It's very perplexing to say the least.
Current test is simply:
Code: | # umount /v_archive
# mkfs.btrfs -f -L v_archive /dev/sdb1
# mount /v_archive
# cp -R /path/to/dir /v_archive/
cp: error writing ‘/v_archive/dir/history.dat’: No space left on device
cp: failed to extend ‘/v_archive/dir/history.dat’: No space left on device |
The /etc/fstab string is:
Code: | /dev/sdb1 /v_archive btrfs noatime,compress=lzo,autodefrag 0 0 |
Here's some info from btrfs:
Code: | # btrfs fi df /v_archive/
Data, single: total=6.01GiB, used=3.53GiB
System, DUP: total=8.00MiB, used=16.00KiB
System, single: total=4.00MiB, used=0.00
Metadata, DUP: total=1.00GiB, used=27.22MiB
Metadata, single: total=8.00MiB, used=0.00
# df -h /v_archive
Filesystem Size Used Avail Use% Mounted on
/dev/sdb1 409G 3.6G 403G 1% /v_archive
# btrfs fi show /v_archive
Label: v_archive uuid: 36b49163-6e03-4999-b393-6a5d8150f1e7
Total devices 1 FS bytes used 3.56GiB
devid 1 size 408.37GiB used 8.04GiB path /dev/sdb1
Btrfs v3.12 |
Server info:
Code: | # uname -a
Linux localhost 3.10.25-gentoo #2 SMP Fri Feb 28 11:35:24 PST 2014 x86_64 Intel(R) Xeon(R) CPU E5345 @ 2.33GHz GenuineIntel GNU/Linux |
Note: the server is kept up to date weekly, though I'm a little outdated on my kernel right now.
Does anyone have any advice? If I put this in the wrong forum, I do apologize. |
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freke l33t
Joined: 23 Jan 2003 Posts: 962 Location: Somewhere in Denmark
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Posted: Thu Apr 17, 2014 7:58 pm Post subject: |
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Seems like btrfs have troubles with big files - stumbled across this in another part of the forum...
Solved his problem by limiting the transferspeed it seems. |
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randalla Tux's lil' helper
Joined: 14 Oct 2008 Posts: 79 Location: Seattle, WA
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Posted: Fri Apr 18, 2014 12:29 am Post subject: |
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freke wrote: | Seems like btrfs have troubles with big files - stumbled across this in another part of the forum...
Solved his problem by limiting the transferspeed it seems. |
Ugh, that's nasty. My hope with btrfs was to hot copy the data files on the ocfs2 volume to the compressed btrfs volume. I guess I will have to look at something else for the file system that supports compression.
Thanks for the heads up, though. |
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