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From: Eric Sandeen <sandeen@sandeen.net>
To: Leslie Rhorer <lrhorer@mygrande.net>, Brian Foster <bfoster@redhat.com>
Cc: Kris Rusocki <kszysiu@braxis.org>,
	"Rhorer, Leslie" <Leslie.Rhorer@level3.com>,
	"xfs@oss.sgi.com" <xfs@oss.sgi.com>
Subject: Re: XFS File system in trouble
Date: Tue, 28 Jul 2015 09:53:36 -0700	[thread overview]
Message-ID: <55B7B390.1050206@sandeen.net> (raw)
In-Reply-To: <55B79BFD.6020509@mygrande.net>

On 7/28/15 8:13 AM, Leslie Rhorer wrote:
> On 7/28/2015 7:33 AM, Brian Foster wrote:
>> On Tue, Jul 28, 2015 at 02:46:45AM -0500, Leslie Rhorer wrote:
>>> On 7/20/2015 6:17 AM, Brian Foster wrote:
>>>> On Sat, Jul 18, 2015 at 08:02:50PM -0500, Leslie Rhorer wrote:

...

>>>> would try to hopefully isolate a filesystem problem from something
>>>> underneath:
>>>>
>>>> xfs_metadump -go /dev/md0 /somewhere/on/rootfs/md0.metadump
>>>> xfs_mdrestore -g /somewhere/on/rootfs/md0.metadump /.../fileonrootfs.img
>>>> mount /.../fileonrootfs.img /mnt/
>>>
>>>     I tried to do the xfs_mdrestore to the root file system, but it fails:
>>>
>>> RAID-Server:/TEST# xfs_mdrestore -g md0.metadump RAIDfile.img
>>> xfs_mdrestore: cannot set filesystem image size: File too large
>>>
>>
>> Hmm, I guess the file size exceeds the capabilities of the root fs, even
>> if there might ultimately be enough space to restore the metadump.
> 
> I wouldn't think so, at least not fundamentally. It's ext4. It's
> certainly not big enough to hold an 18T file system, though, and
> perhaps that is what xfs_restore is checking.

No, it's just failing to write any data at an 18T offset.

The ext4 filesystem (with 4k blocks) is limited to a 16T maximum file
offset; you won't be able to restore a (sparse) 18T filesystem
image onto an ext4 filesystem.

-Eric

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  reply	other threads:[~2015-07-28 16:53 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-18  1:46 XFS File system in trouble Rhorer, Leslie
2015-07-18 14:16 ` Eric Sandeen
2015-07-18 17:23   ` Rhorer, Leslie
2015-07-18 17:47     ` Kris Rusocki
2015-07-18 18:12       ` Leslie Rhorer
2015-07-19  1:02       ` Leslie Rhorer
2015-07-19 23:27         ` Dave Chinner
2015-07-20  7:41           ` Leslie Rhorer
2015-07-20  8:05             ` Martin Papik
2015-07-20  8:35               ` Leslie Rhorer
2015-07-20  8:52                 ` Martin Papik
2015-07-20 13:08                 ` Gim Leong Chin
2015-07-20 13:34             ` Eric Sandeen
2015-07-23  3:18             ` Eric Sandeen
2015-07-24 13:47               ` Leslie Rhorer
2015-07-24 14:44                 ` Eric Sandeen
2015-07-24 15:29                   ` Rhorer, Leslie
2015-07-20 11:17         ` Brian Foster
2015-07-23  1:45           ` Leslie Rhorer
2015-07-23 11:36             ` Brian Foster
2015-07-28  7:46           ` Leslie Rhorer
2015-07-28  8:35             ` Stefan Ring
2015-07-28 10:48             ` Roger Willcocks
2015-07-28 12:33             ` Brian Foster
2015-07-28 15:13               ` Leslie Rhorer
2015-07-28 16:53                 ` Eric Sandeen [this message]
2015-07-28 19:12                   ` Martin Papik
2015-07-28 19:52                     ` Martin Steigerwald
2015-07-28 22:11                 ` Brian Foster
2015-08-02 20:24                   ` Leslie Rhorer
2015-08-04  7:52                     ` Leslie Rhorer
2015-08-04 12:19                       ` Brian Foster
2015-08-04 22:42                       ` Dave Chinner
2015-08-10  1:37                         ` Leslie Rhorer
2015-08-13  6:21                           ` Leslie Rhorer
2015-08-14  1:26                             ` Dave Chinner
2015-08-14 23:12                               ` Leslie Rhorer
2015-08-15 12:28                                 ` Roger Willcocks
2015-08-15 18:48                                   ` Eric Sandeen
2015-08-15 18:57                                     ` Roger Willcocks
2015-08-15 22:48                                       ` Dave Chinner
2015-08-15 19:00                                     ` Eric Sandeen
2015-08-15 19:13                                       ` Roger Willcocks
2015-08-16  0:32                                       ` Eric Sandeen
2015-08-18  2:14                                 ` Dave Chinner

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