From: Guido Winkelmann <guido-ceph@thisisnotatest.de>
To: Mark Nelson <mark.nelson@inktank.com>
Cc: ceph-devel <ceph-devel@vger.kernel.org>
Subject: Re: Unmountable btrfs filesystems
Date: Fri, 22 Jun 2012 16:47:44 +0200 [thread overview]
Message-ID: <32695314.Vnmc9MkfxK@pc10> (raw)
In-Reply-To: <4FDCDA83.7070708@inktank.com>
Am Samstag, 16. Juni 2012, 14:12:03 schrieb Mark Nelson:
> btrfsck might tell you what's wrong. Sounds like there is a
> btrfs-restore command in the dangerdonteveruse branch you could try.
> Beyond that, I guess it just really comes down to tradeoffs.
I've had similar problems in the recent past. Turns out Ceph makes heavy use
of btrfs snapshots when running on btrfs, and btrfs-restore will not restore
those, so it cannot be used to restore a broken osd.
Guido
next prev parent reply other threads:[~2012-06-22 14:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-16 18:46 Unmountable btrfs filesystems Wido den Hollander
2012-06-16 19:12 ` Mark Nelson
2012-06-22 14:47 ` Guido Winkelmann [this message]
2012-06-17 13:55 ` Martin Mailand
2012-06-18 9:30 ` Wido den Hollander
2012-06-22 14:54 ` Guido Winkelmann
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