On Fri, 2005-11-11 at 14:36 -0500, Mike Poublon wrote: > I'm working on setting up an NFS file server using Fedora Core 4. The NFS > shares will be accessed by compute nodes inside of a cluster computer. I've > successfully done this in the past, but due to some recent hardware changes > have run into a slight issue. The server (also head node of the cluster) has > Gigabit network cards. 9 of the compute nodes (NFS Clients) do not, they have > 10/100 nics. There are also 5 compute nodes that do have gigabit cards. The > problem is this: > > When the nodes with gigabit cards mount an NFS share everything works fine. > When the 10/100 nodes try to mount, they are successful, but can't read large > files (~600mb). They display the error message > > server <hostname> not responding, still trying > > and sit there not realling doing much (as far as i can tell). > > The MTU is set at the default of 1500 on all of the NICS (gigabit and 10/100). > > If anyone has seen this problem and knows a way around it I'd appreciate some > hints. It's not uncommon for autonegotiation to not really work between your machines and the switch/router. It would help if we knew what switch you're using and the makes of the 10/100 cards. In lieu of that info, see if you can turn off autonegotiation on both the switch ports connected to the 10/100 machines and the machines themselves and force 100Mb, full duplex on both ends. See if that helps. ---------------------------------------------------------------------- - Rick Stevens, Senior Systems Engineer rstevens@xxxxxxxxxxxxxxx - - VitalStream, Inc. http://www.vitalstream.com - - - - The Theory of Rapitivity: E=MC Hammer - - -- Glenn Marcus (via TopFive.com) - ----------------------------------------------------------------------
