From: David Goodwin <david@codepoets.co.uk>
To: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: device removal seems to be very slow (kernel 4.1.15)
Date: Tue, 5 Jan 2016 13:04:29 +0000 [thread overview]
Message-ID: <568BBF5D.40304@codepoets.co.uk> (raw)
Using btrfs progs 4.3.1 on a Vanilla kernel.org 4.1.15 kernel.
time btrfs device delete /dev/xvdh /backups
real 13936m56.796s
user 0m0.000s
sys 1351m48.280s
(which is about 9 days).
Where :
/dev/xvdh was 120gb in size.
/backups is a single / "raid 0" volume that now looks like :
Label: 'BACKUP_BTRFS_SNAPS' uuid: 6ee08c31-f310-4890-8424-b88bb77186ed
Total devices 3 FS bytes used 301.09GiB
devid 1 size 100.00GiB used 90.00GiB path /dev/xvdg
devid 3 size 220.00GiB used 196.06GiB path /dev/xvdi
devid 4 size 221.00GiB used 59.06GiB path /dev/xvdj
There are about 400 snapshots on it.
thanks
David.
next reply other threads:[~2016-01-05 13:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-05 13:04 David Goodwin [this message]
2016-01-05 13:37 ` device removal seems to be very slow (kernel 4.1.15) Austin S. Hemmelgarn
2016-01-05 16:35 ` Lionel Bouton
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