'A free-form string array of identifiers of this resource presented to the virtual computer system's operating system. These values are only used if the ResourceType property is set to 6 (Parallel SCSI HBA) and the ResourceSubType property is set to "Microsoft Synthetic SCSI Controller". This property is set to "GUID". This is a read-only property, but it can be changed using the ModifyVirtualSystemResources method of the Msvm_VirtualSystemManagementService class. Windows Server 2008: The VirtualSystemIdentifiers property is not supported until Windows Server 2008 R2.'