Re: Journaling File System



I've seen some retorts to the linuxgazette.net report from the Reiser4
fans, basically explaining that Reiser makes better use of unused CPU
cycles and that the single PIII 500 is not likely to reflect a
production system of today.

Ed is correct on the EXT3 being the only supported FS from the Redhat
kernel. You would need to roll your own kernel.

Personally, I don't like the EXT3 system are large volumes, especially
if there is a crash, you have to wait a very long time for a FSCK to
complete--and with a production server, that's a lot of people
breathing down your neck asking, "Is it up yet?"

My preference, keep in mind I'm only running Redhat on my Oracle
servers and otherwise use Debian, is to use JFS. Unfortunately, I
don't have many tests to throw your way as JFS is relatively new, for
more info on JFS: http://www.linuxjournal.com/article/6268

On 3/3/06, Ed Wilts <ewilts@xxxxxxxxxx> wrote:
On Fri, Mar 03, 2006 at 08:56:22AM +0100, JB wrote:
On 3/3/06, ssevengor@xxxxxxxxxx <ssevengor@xxxxxxxxxx> wrote:
Don't hesitate Ext3!

Here explanation;
http://www.redhat.com/support/wpapers/redhat/ext3/

Now, that is a pretty old whitepaper on ext3. There has been quite
alot of development on journalling file systems over the year.

A nice overview is here:

http://en.wikipedia.org/wiki/Comparison_of_file_systems#Features

That document is a bit outdated and it's flat out wrong in places.

Check out http://linuxgazette.net/122/piszcz.html for one person's
recent set of benchmark runs. You'll see that he finds ext3 to be
comparable to other file systems and in some tests, ext3 kicks some
serious reiser butt.

--
Ed Wilts, RHCE
Mounds View, MN, USA
mailto:ewilts@xxxxxxxxxx
Member #1, Red Hat Community Ambassador Program

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