On Tue, Jun 10, 2003 at 03:10:53PM -0600, Chris Jones wrote:
> A few days ago, I noticed my NFS server getting really slow; I sent a 
> message to this list at that time.  I'm starting to think it's a problem 
> with the filesystem on the server, but I'm at a loss for how to really 
> nail down the cause of it.
> 
> The machine is running raidframe across two IDE drives, wd1 and wd2. 
> They're partitioned almost identically, the difference being that one 
> has a boot partition, and the other has a swap partition that's online 
> but never actually used -- it's there for dumps.
> 
> My complaint is that performance is really bad.  It's gotten 
> dramatically worse in the past few days, though I can't really quantify 
> it at this point.  Various CVS operations are taking many times longer 
> than normal, and NFS performance is bad enough that the clients think 
> the server's not responding at all.
> 
> The strange thing is the output of iostat.  The two drives, wd1 and wd2, 
> are the only devices connected to an IDE controller.  The drives are 
> identical, and they're being used in a RAID1 array.  But wd2 sees 2-3 
> times as many accesses as wd1, and they're in smaller chunks.  If 
> anybody has suggestions on where else to look, I'd appreciate it.

What is the output of raidctl -a, and the disklabel of your raid ?

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 24 ans d'experience feront toujours la difference
--