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GPFS NodeData File problem

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Operating Systems AIX GPFS NodeData File problem
# 1  
Old 10-24-2014
GPFS NodeData File problem
Hi Everyone

I have configured two node GPFS cluster and it is running fine. But today when I have rebooted one of the node and after starting GPFS one node shows down. on investigating I have checked that mmfsNodeData file is missing from location /var/mmfs/gen/ on one node. I am receiving the following error. Please let me know how to recover it.

Code:
bash-4.2# mmgetstate -a

 Node number  Node name        GPFS state
------------------------------------------
       1      GP1              unknown
       2      GP2              active

bash-4.2# mmrefresh -f
mmrefresh: 6027-1271 Unexpected error from getLocalNodeData: Missing /var/mmfs/gen/mmfsNodeData.  Return code: 1
mmrefresh: 6027-1639 Command failed.  Examine previous error messages to determine cause.

# 2  
Old 10-24-2014
Have you changed any IP addresses or host names? Post contents of mmfsNodeData on node that is active.
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