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From: Tomasz Chmielewski <mangoo@wpkg.org>
To: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: why am  I getting "No space left on device" here?
Date: Wed, 15 Jan 2014 11:55:43 +0100	[thread overview]
Message-ID: <20140115115543.790adafb@wpkg.org> (raw)

I'm no longer able to write to this btrfs filesystem:

# df -h /home
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdb4       5.2T  3.6T  1.6T  71% /home


# btrfs fi show /home
Label: crawler-btrfs  uuid: 60f1759c-45f6-4484-9f60-66a4e9bbf2b6
        Total devices 2 FS bytes used 1.80TiB
        devid    3 size 2.56TiB used 1.80TiB path /dev/sdb4
        devid    4 size 2.56TiB used 1.80TiB path /dev/sda4

Btrfs v3.12


# btrfs filesystem df /home
Data, RAID1: total=1.75TiB, used=1.75TiB
System, RAID1: total=32.00MiB, used=268.00KiB
Metadata, RAID1: total=53.00GiB, used=51.71GiB


However:

# dd if=/dev/urandom of=bigfile
dd: writing to `bigfile': No space left on device
186+0 records in
185+0 records out
94720 bytes (95 kB) copied, 0.0144045 s, 6.6 MB/s


I don't understand why - can anyone explain?


-- 
Tomasz Chmielewski
http://wpkg.org


             reply	other threads:[~2014-01-15 11:02 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-15 10:55 Tomasz Chmielewski [this message]
2014-01-15 19:05 ` why am I getting "No space left on device" here? Duncan
2014-01-15 19:40   ` Martin Steigerwald
2014-01-15 21:50     ` Duncan
2014-01-15 19:38 ` Chris Murphy
2014-01-15 20:22 ` Tomasz Chmielewski
2014-01-18  0:15   ` Tomasz Chmielewski

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