Michael Will wrote:
I am puzzled by an sles9sp3 (2.6.9 kernel) nfs server that serves rhel3 (2.4.21 kernel) compute nodes. For some reason a lot of times the mounts fail (with default as well as modified parameters). The symptom is mount: rpc timeout. The server logs all authentification requests as successful. The switch is an oversubscribed hp 4108gl.
Yes. This is what we ran into last year. A SuSE box serving a Rocks cluster (Rocks 4.0). Basic idea: use tcp mounts and turn off jumbo packets. Also, we had major issues with the tg3 driver, and moved the RHEL units to a BCM5700 driver. After this, most of the problems went away.
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