[CentOS] Intermittent NFS problems with NetApp server

[Louis Lagendijk]

On Wed, 2009-03-11 at 17:23 -0400, Alfred von Campe wrote:

> 
>    # sysctl net.ipv4.tcp_mem
>    net.ipv4.tcp_mem = 98304        131072  196608
>    # sysctl net.ipv4.tcp_rmem
>    net.ipv4.tcp_rmem = 4096        87380   4194304
>    # sysctl net.ipv4.tcp_wmem
>    net.ipv4.tcp_wmem = 4096        16384   4194304
> 
> So these seem fine to me (i.e., the max is greater than 32768).  Is  
> there an NFS (as opposed to TCP) setting I should be tweaking?  Any  
> ideas why the NetApp is issuing those warnings?  Any other  
> suggestions on how to debug this problem?
> 
man nfs
man mount.nfs
cat /proc/mounts

Louis