Your virtual environment includes Windows Server 2008 R2 Hyper-V servers. The test and development teams are developing a distributed application. 
The application requires a domain controller， a server that runs Microsoft SQL Server， an application server， and a client computer. The application uses pass-through authentication. You need to ensure that at the time of a failure， the test team can reproduce the error and provide the application in the state in which it existed when the error occurred to the development team for continued analysis. You must achieve this goal while minimizing storage requirements. 
What should you do？（）

You have a two-node Hyper-V failover cluster that uses SAN storage. You are designing storage for a new virtualization environment by using Windows Server 2008 R2. 
You plan to deploy five virtual machines （VMs） per logical unit number （LUN）. You need to be able to perform a live migration of a single VM while the other VMs continue to run on the host server. 
What should you do？（）