From: Dave Chinner <david@fromorbit.com>
To: Eric Sandeen <sandeen@sandeen.net>
Cc: xfs@oss.sgi.com, Ole Tange <tange@binf.ku.dk>
Subject: Re: xfs_repair segfaults
Date: Tue, 5 Mar 2013 10:11:37 +1100 [thread overview]
Message-ID: <20130304231137.GN26081@dastard> (raw)
In-Reply-To: <5134BB1F.4020207@sandeen.net>
On Mon, Mar 04, 2013 at 09:17:51AM -0600, Eric Sandeen wrote:
> On 3/4/13 6:47 AM, Ole Tange wrote:
> > On Fri, Mar 1, 2013 at 11:32 PM, Eric Sandeen <sandeen@sandeen.net> wrote:
> >
> >> Ole, you can xfs_mdrestore your metadump image and run test repairs on the result,
> >> if you want a more realistic "dry run" of what repair would do.
> >
> > I have never run xfs_mdrestore before.
> >
> > From the man page:
> >
> > xfs_mdrestore should not be used to restore metadata onto an
> > existing filesystem unless you are completely certain the target can
> > be destroyed.
> >
> > It is unclear to me if you are suggesting me to do:
> >
> > xfs_mdrestore the-already-created-dump /dev/md5p1
>
> no. definitely not. :)
>
> > followed by xfs_repair. Or if you want me to restore the metadata on
> > another 100 TB partition (I do not have that available).
>
> Nope - to a sparse file, on a filesystem which can hold a file with
> 100T offsets - like xfs.
>
> > Maybe you have a trick so that it can be restored on some smaller
> > block device, so I do not need the 100 TB partition, but I will still
> > be able to see how many files are being removed? If you have such a
> > trick, consider including it in the manual.
>
> Probably worth doing, or putting in the xfs faq.
Examples of how to do these sorts of operations should go into the
xfs users guide here:
http://xfs.org/docs/xfsdocs-xml-dev/XFS_User_Guide//tmp/en-US/html/index.html
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2013-03-04 23:12 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-28 15:22 xfs_repair segfaults Ole Tange
2013-02-28 18:48 ` Eric Sandeen
2013-03-01 9:37 ` Ole Tange
2013-03-01 16:46 ` Eric Sandeen
2013-03-04 9:00 ` Ole Tange
2013-03-04 15:20 ` Eric Sandeen
2013-03-08 10:21 ` Ole Tange
2013-03-08 20:32 ` Eric Sandeen
2013-03-12 10:41 ` Ole Tange
2013-03-12 14:40 ` Eric Sandeen
2013-03-12 11:37 ` Ole Tange
2013-03-12 14:47 ` Eric Sandeen
2013-03-01 11:17 ` Dave Chinner
2013-03-01 12:24 ` Ole Tange
2013-03-01 20:53 ` Dave Chinner
2013-03-04 9:03 ` Ole Tange
2013-03-04 23:23 ` Dave Chinner
2013-03-08 10:09 ` Ole Tange
2013-03-01 22:14 ` Eric Sandeen
2013-03-01 22:31 ` Dave Chinner
2013-03-01 22:32 ` Eric Sandeen
2013-03-01 23:55 ` Eric Sandeen
2013-03-04 12:47 ` Ole Tange
2013-03-04 15:17 ` Eric Sandeen
2013-03-04 23:11 ` Dave Chinner [this message]
-- strict thread matches above, loose matches on Subject: below --
2013-05-06 12:06 Xfs_repair segfaults Filippo Stenico
2013-05-06 14:34 ` Eric Sandeen
2013-05-06 15:00 ` Filippo Stenico
[not found] ` <CADNx=Kv0bt3fNGW8Y24GziW9MOO-+b7fBGub4AYP70b5gAegxw@mail.gmail.com>
2013-05-07 13:20 ` Eric Sandeen
2013-05-07 13:36 ` Filippo Stenico
2013-05-07 18:20 ` Filippo Stenico
2013-05-08 17:30 ` Filippo Stenico
2013-05-08 17:42 ` Filippo Stenico
2013-05-08 23:39 ` Dave Chinner
2013-05-09 15:11 ` Filippo Stenico
2013-05-09 17:22 ` Filippo Stenico
2013-05-09 22:39 ` Dave Chinner
[not found] ` <CADNx=KuQjMNHUk6t0+hBZ5DN6s=RXqrPEjeoSxpBta47CJoDgQ@mail.gmail.com>
2013-05-10 11:00 ` Filippo Stenico
2013-05-09 22:37 ` Dave Chinner
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