I currently have the following environment.
- 2 Node physical MSCS 2003 R2 Cluster
- Fiber attached to IBM DS4700 SAN (one large array, with serveral LUN's assigned to the cluster)
I am looking to install a Windows 2012 Cluster, and migrate the data over. The new cluster will be installed in a VMWare ESXi 5.1 environment. Here is what I have come up with for a plan.
- Install a Windows 2008 R2 VM on the ESX Server, and make it a single node cluster
- Perform all fabric zoning so the existing LUN's assigned to the 2003 cluster are now visible to the new 2008 single node cluster.
- Run the 2008 Cluster Migration tool and shut down the existing 2003 cluster servers.
- Upgrade the 2008 single node cluster to 2012.
- Run the new 2012 cluster migration wizard.
- Finally provision a new 2012 server and add it to the cluster.
The only concerns I have is that I need to ensure that the data is not lost on the existing LUN's. Currently my two ESX servers have fiber access, but I am thinking I need to enable NPIV to limit access to the LUN's only to the new cluster VM OSes.
Can anyone provide any additional information that I should consider?