You can boot a VM from a SAN, node of a WSFC.
Booting from a SAN is complex. Problems that you encounter in physical environments extend to virtual environments. For general information about booting from a SAN, see the vSphere Storage documentation.
Follow these guidelines when you place the boot disk of a virtual machine on a SAN-based VMFS volume:
- Consider the best practices for boot-from-SAN that Microsoft publishes in the following knowledge base article: http://support.microsoft.com/kb/305547/en-us.
- Use StorPort LSI Logic drivers instead of SCSIport drivers when running Failover Clustering for Windows Server 2008 guest operating systems.
- Test clustered configurations in different failover scenarios before you put them into production environments.