Windows 2008 Cluster service with CSV

2 nodes in a Windows 2008 Cluster. With both nodes added and online I have volumes on both servers showing online. Once I add the volume to CSV my secondary node disks go offline.
I can evict my second node from the cluster and run diskpart and bring the volumes back online then add the node back into the cluster.
However the second I add the volume to Cluster Shared Volume the second nodes drives go offline.
I am using iSCSI to connect to my SAN, the volume is being shared by both servers in my cluster.
Can't get the volume to stay online on my second node after I add the volume into Cluster Shared Volumes.
This is a Lun on a SAN that is a Netapp appliance.
lanman777Asked:
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msmamjiConnect With a Mentor Commented:
Can you run cluster validation on these nodes? It might point to something wrong with configuration.
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msmamjiCommented:
If I understand you correctly, You are saying that the CSV Volume is only visible on one at a time. How are you checking this? using Failover clustering Manager? doesn't the volume show up in C:\ClusterStorage\Volume1 (assuming this is the first CSV)?

Failover Clustering Manager would only show one node at being the owner (Coordinator node), but it should still allow you to read/write into VM file on both nodes.
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lanman777Author Commented:
You are correct but I cannot read/write to both because when I add the csv volume it takes my secondary node volume offline.
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msmamjiCommented:
what do you mean by "seconday node volume"? Are we talking about another volume here?
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lanman777Author Commented:
Just the node, when I add the secondary node (server) back in that I evicted. They both share the same single volume setup as CSV. After the second server node is added back in it's volume goes offline.
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