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→Virtual Machine Name and Location
Once the information is complete, click ''Next'' to proceed to the memory configuration step.
== Configuring Virtual Machine Memory ==
As the name suggests, the ''Assign Memory'' screen allows the amount of memory allocated to the virtual machine to be specified. The amount to allocate will depend on a number of factors including:
- The memory requirements of the guest operating system which will run inside the virtual machine.
- The amount of physical memory present in the host system.
- The requirements of other virtual machines which will run concurrently with the virtual machine currently being created.
Note that the amount of memory allocated at this stage may be modified at a later date is the selection made now proves to be problematic.
Once the memory allocation has been made, click ''Next'' to configure Networking.
== Configuring Virtual Machine Networking ==
Virtual machines are assigned a network adapter which allows the guest operating system to connect to a virtual network. Virtual networks are configured outside of the virtual machine creation process and can be configured using the ''Virtual Network Manager...'' link in the Hyper-V Manager Actions panel. Virtual networks can be ''external'' (the virtual machine has access to the external network), ''internal'' (virtual machine can connect to other virtual machines on the physical host and also with the physical host itself, but not the external network) or ''private'' (communication only between virtual machines on the same physical host, no communication with physical host or external network). For an overview of virtual networks refer to the chapter entitled [[Understanding and Configuring Hyper-V Virtual Networks]].
Either select a pre-existing virtual network from the drop down list, or select ''Not Connected'' if there is to be no network connection, or the connection is to be configured at a later time. Click ''Next'' to proceed to the hard drive configuration screen.
== Configuring a Virtual Hard Disk ==
The guest operating system running in a virtual machine will typically require access to disk storage both to contain the system files and any user data. The first requirement is that the storage to be used by the virtual machine must be accessible to the host system. In terms of storage access, Hyper-V supports ''Direct Access Storage (DAS) drives including IDE, SATA, SCSI and SAS, and ''Storage Area Network'' standards such a fiber channel and iSCSI.
Assuming that the storage is connected to the host system in some way there are two choices as to how a virtual hard disk is made available to the virtual machine:
- '''Virtual Hard Disk (VHD)''' - The virtual hard disk created as a file which resides on a storage colume which is accessible to the host server. Disks can be ''dynamic expanding'' (starts small and grows as space is required) or ''fixed'' in size. The maximum size of VHD is 2040GB.
- ''Pass-through disk'' - A pass-through disk assigns a physical disk drive to the virtual machine enabling the guest operating system to perform raw read and write actions on the disk. Hyper-V imposes no constraints on the size of a pass-through disk.
Although the ''New Virtual Machine'' wizard does not provide the option to
