LinuxSA Mailing list archives

  From: Alan Kennington <akenning@topology.org>
  To  : Franco Principe <franco@sgi.com>
  Date: Thu, 3 May 2001 16:48:43 +0930

Re: Official Release of Linux XFS

On Wed, May 02, 2001 at 04:11:13PM +0930, Franco Principe wrote:
> 
> some of you might be interested in the xfs release for Linux.
> 
> http://linux-xfs.sgi.com/projects/xfs/
> 
> 
[...]
> - advanced features: 
>   * Fast recovery after a system crash or power failure (fsck not
> needed) 
>   * Journalling for guaranteed filesystem integrity 


Franco,

Question 1:
It sounds like this means that a UPS is now of doubtful value,
if one is using a UPS for the sole reason of preventing
crash-time damage to file systems.
Is that right?
If that's true, I may have just wasted A$1350.

Question 2:
Is XFS usable as the /boot file system?
I found with ReiserFS on SuSE 7.1 that I couldn't really
use ReiserFS for /boot. Maybe that was because the minimum
size for a ReiserFS partition was 30 MB, or maybe there was
some other reason. But then again, one doesn't write
much to /boot anyway. So it doesn't matter...

Back to question 1:
My real point I'm getting at is:  how good a guarantee
is there that you can turn off the power switch and
hope to get your system going again?
I did this once with my Reiser file system, and trashed my
/etc/rc.config file, which was currently being edited.

I.e. sometimes a file system may recover without fsck etc.,
but it might not be the file system you want!
As a file system, it might be structurally correct, but it
might be unbootable due to the files having the wrong contents.

I bet this info is in some FAQ somewhere, but life is short,
and FAQs are long.

Cheers,
Alan Kennington.

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