Your environment includes a Windows Server 2008 R2 Hyper-V failover cluster and a single Windows Server 2008 R2 Hyper-V server. You are designing a migration strategy. You need to ensure that you can perform a SAN migration to move virtual machines （VMs） from the single server into the failover cluster. Which two actions should you perform？（）
- AAdd the Storage Manager for SANs feature
- BInstall a Virtual Disk Service （VDS） hardware provider
- CUse Cluster Shared Volumes （CSVs） to store the VM files
- DInstall Microsoft System Center Virtual Machine Manager （VMM） 2008 R2