lkml.org 
[lkml]   [2003]   [Oct]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Blockbusting news, results are in
Larry McVoy wrote:
>> I've told you guys over and over that you need to CRC the data in user
>> space, we do that in our backup scripts and it tells us when the drives
>> are going bad. S

On Sun, Oct 19, 2003 at 12:08:00PM +0400, Hans Reiser wrote:
> Why do the CRC in user space, that requires modifying every one of 7000+
> applications (if I understand you correctly, which is far from a sure
> thing;-) )?
> Write a reiser4 CRC file plugin. It would take a weekend, and most of the
> work would be cut and pasting from the default file plugin..
> I understand why you do it in BK, but for user space as a whole user space
> is the wrong place.

I think the fs driver layer might be the wrong thing too; maybe it'd be
best to do the CRC and/or checksumming at the block layer?

At the very least, I see a lack of genericity with respect to making it a
plugin to a specific fs. I'm going to try not to delve too far into
specifics, as my knowledge in these areas is limited, but I'd welcome any
corrections of misunderstandings I might have about feasibility, value,
or importance of these things, and even techhical misconceptions.

Jens, I apologize if advance if this is just another lame flamewar best
bitbucketed as opposed to answered.

Thanks.


-- wli
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:58    [W:0.088 / U:0.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site