Talk:Video High Density
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About the VHD Format
The Microsoft VHD file format specifies a virtual machine hard disk that can reside on a native host file system encapsulated within a single file. The format is used by Virtual PC 2004 and Virtual Server 2005, and the format will be used by a future version of Microsoft Windows Server that includes hypervisor-based virtualization technology. Beyond that, the VHD format is broadly applicable, because it is agnostic to the virtualization technology, host operating system, or guest operating system with which it is used.
Customers and partners who invest the VHD file format will have a clear path forward to future Windows virtualization technologies. In addition, Microsoft plans to design its systems management tools around the VHD file format for improved patching and manageability.
Top of page Potential Uses of the VHD Format The ability to directly modify a virtual machine’s hard disk from a host server supports many interesting applications that may be of interest to customers. These include:
• Moving files between a VHD and the host file system
• Backup and recovery
• Antivirus and security
• Image management and patching
• Disk conversion (physical to virtual, and so on)
• Life-cycle management and provisioning