Hi,
This should help: http://blogs.technet.com/b/askcore/archive/2011/08/08/partitioned-cluster-networks.aspx
Hi Scott_42,
Your issue most times caused the incorrect network configuration, or others possible is caused by NIC not installed properly, if the following related third part solution not work please try to removing hidden devices (adapters) in device manager, update your server Firmware update to latest then monitor this issue again.
Some related third party solution
Cluster network SAN1 is partitioned
http://www.youdidwhatwithtsql.com/cluster-network-san1-is-partitioned/1288/
More information:
Event ID 1129: Cluster network is partitioned
http://www.chicagotech.net/netforums/viewtopic.php?f=3&t=15446
Im glad to be of help to you!
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