Failover behaviour on a 2 node cluster

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Hello,

I've got a fibre san at work and 2 blade servers and chasis...
My goal is to setup a 2 node exchange cluster. I'm a newb to clusters.
At this point I have the 2 nodes configured in a cluster. I was just
testing failover. I went through a couple test failure configurations.

I test failure in 3 different ways (the third one I am experiencing
issues):
1)I gracefully shutdown the active node: The passive node took over and
became the active node
2)Selected a Resource and Initiated failur on it 4 times: The Passive
node took over that resource...

3)Hard shutdown the Active node: The Passive node is unable to Take
over.

I'm getting these sort of errors in my event log:

-------Begin Event---------
Service: ClusSvc
Category: Physical Disk Resource
Event ID: 1034

The disk associated with cluster disk resource 'Disk Q:' could not be
found. The expected signature of the disk was 059E1D89. If the disk was
removed from the server cluster, the resource should be deleted. If the
disk was replaced, the resource must be deleted and created again in
order to bring the disk online. If the disk has not been removed or
replaced, it may be inaccessible at this time because it is reserved by
another server cluster node.
-------End Event-----------

How ever if I power on the pseudo Failed node the cluster, it comes
back up and If I fail in one of the 1st 2 ways everything is fine again
(the passive node becomse active)...

At this point I uninstalled multipath drivers for our san disks because
I read of issues such as the above event that are caused by multipath
software...

But this has not fixed it..

It's wierd it seems like the active node that fails somehow locks the
Cluster disk resources... Does anybody have any ideas?

TIA
Ariel

.

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