Slow performance writing to NetApp filer

Joshua Baker-LePain jlb17 at
Mon Nov 19 21:56:37 UTC 2007

On Mon, 19 Nov 2007 at 3:30pm, Joshua Baker-LePain wrote

> I just submitted <> 
> regarding an odd issue we're having.  Fedora (both 7 and 8) have horribly 
> slow performance when writing to our NetApp FAS3020 filer.  I've tested on 2 
> sets of hardware (i386 and x86_64, with tg3 and e1000 NICs).  No matter what 
> I try, it won't go faster than ~5MB/s.  The same hardware running CentOS-5 
> gets ~50MB/s.  Performance is just fine pointing the Fedora boxes at a 
> Panasas filer.
> Has anybody else run into this?  It seems a rather odd bug to me.

In response to Warren's email (which I saw in the list archives as I 
forgot to mention that I'm subscribed to the digest only) all testing was 
done using NFSv3 only.  I tried without any mount options, and also with 
explicit 32K block sizes.

Joshua Baker-LePain
QB3 Shared Cluster Sysadmin

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