[gpfsug-discuss] Node expulsion from GPFS Cluster
Linda Dewar
linda at epcc.ed.ac.uk
Wed Jan 16 16:00:15 GMT 2013
Hello,
Just wondering if anyone else has seen anything like this.
I am using GPFS 3.4.0.7.
I have a multicluster setup with NSD servers and TSM servers (running
RHEL 6.2) in a Server cluster and clients (some running SUSE 11 SP1 and
some running RHEL 6.2) in a Client cluster.
All clients in both clusters are connected to a IBM BNT G8200 switch
Nodes in the Client cluster are regularly expelled from the cluster,
either at the request of other nodes in the Client cluster, or nodes in
the Server cluster. This means that GPFS is shut down on the expelled
node and filesystems unmounted . Obviously inconvenient to the users.
Basic connectivity (ie response to ping) between nodes is unaffected at
the times of the node expulsions. We are looking at using Wireshark to
investigate what appears to be some sort of network connectivity problem.
Does any of this sound familiar to anyone else, and does anyone have any
suggestions as to what we should be looking for?
Many thanks,
Linda
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