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Re: System Hard Crash and Recovery

To: Joy Almacen <joy@xxxxxxxxxxx>
Subject: Re: System Hard Crash and Recovery
From: Eric Sandeen <sandeen@xxxxxxx>
Date: 14 Jan 2002 14:36:25 -0600
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <3C43317C.80802@empexis.com>
References: <3C43317C.80802@empexis.com>
Sender: owner-linux-xfs@xxxxxxxxxxx
Hi Joy - 

Hm, I have never seen file versions from "a few days back" - usually on
a lock-up, you only have problems with files written in the last ~30
seconds - and then, you don't get the old version back, anyway.

1.0 is pretty ancient these days, if you're going to continue using the
machine I would strongly recommend upgrading to XFS release 1.0.2.

There is probably no way to recover data that you have lost through a
crash, it looks in your case like it never even hit the disk.  Are you
_certain_ that the newer versions were ever really there on this
machine?

-Eric

On Mon, 2002-01-14 at 13:29, Joy Almacen wrote:
> Hello,
> 
> Just inherited an XFS-enabled  system (RH7.1 Linux version 
> 2.4.2-SGI_XFS_1.0smp).  A few days ago the server locked up and we had to do
> a hard reboot.  Everything rebooted just fine except for some weird 
> things about
> some files.  They reverted back to old versions ( a few days back). I do 
> not know if this has something to do with disk allocation and writing 
> (caching?).  
> 
> My question is how can I  check what has caused this weird reversion to 
> the old versions of our production scripts? Also, is there a way to 
> recover data,  backup was not enabled on prior to system crash, thru xfs 
> utilties?
> 
> Thanks a lot,
> 
> Joy
> 
-- 
Eric Sandeen      XFS for Linux     http://oss.sgi.com/projects/xfs
sandeen@xxxxxxx   SGI, Inc.


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