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CSV not visible in C:\ClusterStorage despite being "online"

Posted on 2014-02-18
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Last Modified: 2014-02-18
Ive been experimenting with clustering in 2012 R2 HyperV Host. I had one with the same name before (HVCL-01). During that time I created a cluster shared volume that points to an iscsi LUN on my Lefthand SAN. And it worked.

But there were speed transfer issues and I destroyed the cluster with the wizard in the Failover Cluster Manager.

Now, I've recreated the cluster (with the same nodes as before), and immediately there is a cluster shared volume here (which, I wasn't expecting). I cant seem to get rid of it, only take it offline.

Everything passes the validation wizard. It says its working

And yet when I go to C:\ClusterStorage there is no subdirectory for the volume on either of my nodes.

If I drop to powershell and do a Get-ClusterResource it shows "Cluster Disk 1" as online, owned by the Cluster Group and being a physical disk

If I do Get-ClusterSharedVolume nothing is returned, but there is no error

If I do Get-ClusterResource "Cluster Disk 1" | fl * I get a long stream of output as expected.

Its in my cluster, its a core resource, its online, its not in maintenance mode, etc.

Any thoughts on how to

1) advance my troublshooting of this issue

2) make this volume show up like its suppose to in my ClusterStorage folder

OR

3) delete it in a clean way so I can recreate it.

Since I have two nodes only it does appear the cluster configuration decided to use the disk as a Disk Witness in Quorum.
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Question by:Eric_Price
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gmbaxter earned 500 total points
ID: 39868614
Use the failover cluster manager to change the cluster quorum to node majority only. This should free up your original lun to be used as a csv. It should show as available storage for the cluster. May need a reboot.

You should however use a quorum with an even number of nodes. I would recommend creating a 512 -1024 MB lun for the quorum.
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by:Eric_Price
ID: 39868699
which is exactly what I ended up doing. For those who come later, the 2012 R2 cluster creation wizard does something new - it will make use of a presented CSV to automatically make a disk based quorum. WHen I first created my cluster I didnt have that disk, and so it just made a 2 node cluster without any kind of quorum protection.

As gmbaxter suggested, I created a 2nd volume on my iSCSI SAN that was 1GB, and then used the wizard in the Failover Cluster Management software to move the quorum disk to the new one. Voila, the old disk immediately became available in the C:\ClusterStorage folder and (surprisingly to me) the file system appeared to be intact. Bonus.
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