Ext3 users - Jul 2001 - Is anyone using Ext3 on 2.4.x and software raid 5?

Is anyone using Ext3 on a 2.4.x kernel with software raid5?  Does it
work correctly?  Last I checked noone had tried it yet, but that was
before I went away on vacation.
-- 
Daniel R. Bidwell	|	bidwell@andrews.edu
Andrews University	Information Technology Services
If two always agree, one of them is unnecessary
"Friends don't let friends do DOS"
"In theory, theory and practice are the same.
In practice, however, they are not."
No tema al pinguino.

Hi,

On Sun, Jul 22, 2001 at 10:53:50PM -0400, Daniel Bidwell
wrote:
> Is anyone using Ext3 on a 2.4.x kernel with software raid5?  Does it
> work correctly?
Yes.   There have been complaints that very high ext3 plus raid5 loads
cause VM problems, but we're seeing VM problems under lots of
different loads and there is a lot of work going on at the moment to
try to fix things up.  The basic combination of ext3+raid5 should be
OK.

Cheers,
 Stephen

I've been doing some extensive througput testing -- seems pretty stable the
last couple weeks.
I'm on a DUAL 1Ghz/2G-RAM system with a 7x36G Fiber Channel RAID5

Doing a tiobench on the RAID5/ext3 results in a LOT of kswapd usage right
now which makes multi-threaded I/O considerably slower than ext2.  Plus, the
machine appears to "lock up" for a minute or two while kswapd goes
nuts
during the benchmark.  Of course I'm blasting it with a 4G test file.

________________________________________
Michael D. Black   Principal Engineer
mblack@csihq.com  321-676-2923,x203
http://www.csihq.com  Computer Science Innovations
http://www.csihq.com/~mike  My home page
FAX 321-676-2355
----- Original Message -----
From: "Daniel Bidwell" <bidwell@andrews.edu>
To: <ext3-users@redhat.com>
Sent: Sunday, July 22, 2001 10:53 PM
Subject: Is anyone using Ext3 on 2.4.x and software raid 5?


Is anyone using Ext3 on a 2.4.x kernel with software raid5?  Does it
work correctly?  Last I checked noone had tried it yet, but that was
before I went away on vacation.
--
Daniel R. Bidwell | bidwell@andrews.edu
Andrews University Information Technology Services
If two always agree, one of them is unnecessary
"Friends don't let friends do DOS"
"In theory, theory and practice are the same.
In practice, however, they are not."
No tema al pinguino.



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