epic UFS crash

[Diego Arias]

On Mon, Dec 12, 2011 at 10:37 AM, siur <siur.vvm at gmail.com> wrote:

> Hello!
>
> Some days ago I had situation with server running under FreeBSD 7.3.
> Power supply unit suddenly broke down so server switched off
> incorrectly. After that hardware raid controller marked one disk in
> RAID1 as degrated. We've boot system from other disk and found out,
> that almost all data was gone. To be exactly, it's looks like
> everything created during last uptime had just dissappeared. I mean,
> literally, server looked like from the past -- there was no data newer
> than summer 2010. All databases, websites, user's files -- everything
> was created/modified a year ago.
> Fsck created much staff in lost+found directories, but, for example,
> directories looks like empty for 'ls -la', but hex dump shows
> information (that's, actually more like file, not a directory).
>
> So, could anybody help me find out how it possibly could happen? (my
> creepy story contains very few details, I understand). Does anybody
> saw something like that?
> I appreciate any ideas, all that shit just blowing my mind.
>
> P.S. Generally, is there possibility to recover data from filesystem
> with corrupted metadata?(My assumption was about corrupted meta, I
> hope, superblock and data itself is alive).
> P.P.S Sorry for my english 8(
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Hi:

Maybe the other drive have the info updated, do you check that?


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