From: Bill Kendall <wkendall@sgi.com>
To: Gim Leong Chin <chingimleong@yahoo.com.sg>
Cc: xfs@oss.sgi.com
Subject: Re: xfsrestore Does Only Only Partial Restore
Date: Mon, 29 Aug 2011 09:11:35 -0500 [thread overview]
Message-ID: <4E5B9E17.4010504@sgi.com> (raw)
In-Reply-To: <1314534700.48540.YahooMailClassic@web77701.mail.sg1.yahoo.com>
Gim Leong Chin wrote:
> Hi,
>
> This is the very first time I tried doing a xfsrestore of a back up and I hit some serious trouble.
>
> I had openSUSE 11.1 (kernel 2.6.27) on my Acer notebook. I did a xfsdump of /home to a WD My Passport external USB hard drive with XFS on it.
>
> I installed openSUSE 11.4 (kernel 2.6.37), then tried to do xfsrestore from the WD USB drive. The dump file is 121 GB.
>
> I tried two times on two different days, but each time the xfsrestore would stop writing at the exact same point, 49 GB and say success at the end.
>
> I then copied the dump file to one hard drive on my desk top, and did a dump to another hard drive, to /tmp/mnt3. I get back identical messages:
>
...
> 9>xfsrestore: attempt to read 1008286921 bytes failed: end of recorded data
xfsdump breaks a file's data into "extents" that are a max size of 16 MB.
The fact that this is trying to read almost 1 GB here indicates that
the extend header is corrupt.
...
> xfsrestore: content.c:7510: restore_extent_group: Assertion `ehdr.eh_type == 4' failed.
As Dave said, this also indicates a corrupt extent header.
I'd recommend adding "-v 5" to your xfsrestore command line and redirecting the
(very verbose) output to a file, and send that compressed output to me or the
list. It'd be best to do this with more than one of your dumps so we can see
if there's a pattern to where the corruption occurs.
Bill
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next prev parent reply other threads:[~2011-08-29 14:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-28 12:31 xfsrestore Does Only Only Partial Restore Gim Leong Chin
2011-08-28 15:15 ` Gim Leong Chin
2011-08-29 3:53 ` Gim Leong Chin
2011-08-29 5:00 ` Dave Chinner
2011-08-29 5:47 ` Gim Leong Chin
2011-08-29 14:11 ` Bill Kendall [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-08-29 16:36 Gim Leong Chin
2011-08-29 16:44 ` Bill Kendall
2011-08-30 3:06 Gim Leong Chin
2011-08-30 4:07 ` Bill Kendall
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