Cluster Migration Guide - Storage Steps.

Hi all,

I'm in the middle of clustered hyper-v migration. I have two node cluster to be migrated to 2012 cluster.

I got following replies from ther guys that Cluster migration would be best way to do this.

http://social.technet.microsoft.com/Forums/windowsserver/en-US/e8d900d4-6ce7-4713-8913-df144f7decbd/migrate-2008-r2-clustered-vms-to-2012

But I need all steps on storage side. I wathced the cluser migration video on edge and as far as I understand during migration both of my nodes should access to same LUNs and storage. And before actual migration I will take offline SAN access from legacy node. Is that process right?

What is the action name on storage side to show same LUNs to different clusters?

Do I need important points to consider? Is there a risk to lose all my data?

And how will I take offline SAN access from legacy node? LUN masking or what?

I need these steps since i will pass them to my storage guys.

Thanks in advance.