From: Eric Sandeen <sandeen@sandeen.net>
To: gbakos@cfa.harvard.edu
Cc: linux-xfs@oss.sgi.com
Subject: Re: unexpected XFS SB magic number
Date: Fri, 22 Dec 2006 17:33:06 -0600 [thread overview]
Message-ID: <458C6B32.5090004@sandeen.net> (raw)
In-Reply-To: <Pine.SOL.4.58.0612221824500.2856@titan.cfa.harvard.edu>
Gaspar Bakos wrote:
> Hi, Eric,
>
> RE:
>>> xfs_check: unexpected XFS SB magic number 0x45464920
>> That spells "EFI"
>
> Does this have any special meaning? E.g. I could figure out who
> labelled the disk (array)?
EFI is a bootloader....
>> looks like somebody came along & labeled your disk for you. Dangers of
>> being on a san I suppose (if you are....)
>
> Humm. This is an FC5 with SMP opteron. The RAID-5 (12 disks) is ran by
> an ARECA 1130-ML card.
>
>> repair might fix it....
>
> I worry that what repair will leave behind is pure numbers (and many of those), like
> 11212/
> 12133/
> 121212/
> ...
> and to reconstruct ~3Tb from that is not trivial...
>
> This reminds me: what paranoid safety measures can one take? E.g keep
> an external log of the filesystem as well?
>
> Thanks for the thoughts!
>
> Gaspar
>
next prev parent reply other threads:[~2006-12-22 23:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-22 17:42 unexpected XFS SB magic number Gaspar Bakos
2006-12-22 20:12 ` Russell Cattelan
2006-12-22 20:51 ` Gaspar Bakos
2006-12-22 23:15 ` Eric Sandeen
2006-12-22 23:28 ` Gaspar Bakos
2006-12-22 23:33 ` Eric Sandeen [this message]
2006-12-22 23:38 ` Eric Sandeen
2006-12-23 23:08 ` Gaspar Bakos
2006-12-24 3:50 ` Eric Sandeen
2006-12-24 6:08 ` Gaspar Bakos
2006-12-24 12:16 ` Iustin Pop
2007-10-07 9:47 ` qon
-- strict thread matches above, loose matches on Subject: below --
2006-12-22 17:45 Gaspar Bakos
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