Difference between pages "Category:Secure deletion" and "Virtual Hard Disk (VHD)"
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| − | + | The Virtual Hard Disk (VHD) commonly uses the .vhd extension. | |
| + | This format is used to store virtual disk images by: | ||
| + | * Microsoft Virtual PC | ||
| + | * Microsoft Virtual Server | ||
| + | * Microsoft Hyper-V Server | ||
| − | [[Category: | + | == Image types == |
| + | There are multiple types of Virtual Hard Disk (VHD) images: | ||
| + | * Fixed-size hard disk image; the image contains all data | ||
| + | * Dynamic-size (or sparse) hard disk image; the image contains used data only | ||
| + | * Differential (or differencing, or delta) hard disk image; the image contains changes relative to its parent image | ||
| + | |||
| + | == Snapshots == | ||
| + | Hyper-V has functionality to create snapshots. | ||
| + | |||
| + | These snapshots are stored in Snapshot Differencing Disk (AVHD) files which commonly uses the .avhd extension. | ||
| + | |||
| + | The snapshot can be interdependent on one-another, because they are differential images of the previous snapshot. | ||
| + | |||
| + | = Windows integration = | ||
| + | "Disk Management" in (at least) Windows 7 support attaching and creating Fixed and Dynamic VHD image files. | ||
| + | |||
| + | == See Also == | ||
| + | * [[Disk Images]] | ||
| + | |||
| + | == External Links == | ||
| + | |||
| + | * [http://en.wikipedia.org/wiki/VHD_(file_format) VHD (file format)], by Wikipedia | ||
| + | * [http://technet.microsoft.com/en-us/library/bb676673.aspx Virtual Hard Disk Image Format Specification], by Microsoft, October 2006 | ||
| + | * [http://code.google.com/p/libvhdi/downloads/detail?name=Virtual%20Hard%20Disk%20%28VHD%29%20image%20format.pdf Virtual Hard Disk (VHD) image format], by the [[libvhdi|libvhdi project]], September 2012 | ||
| + | |||
| + | === Snapshots === | ||
| + | * [http://social.technet.microsoft.com/wiki/contents/articles/670.hyper-v-concepts-snapshots.aspx Hyper-V Concepts - Snapshots] | ||
| + | * [http://blogs.msdn.com/b/virtual_pc_guy/archive/2008/03/11/virtual-machine-snapshotting-under-hyper-v.aspx Virtual Machine Snapshotting under Hyper-V] | ||
| + | * [http://www.msserveradmin.com/hyper-v-snapshot-files-avhd-and-vhd-what-the/ Hyper-V SnapShot Files – AVHD and VHD? What The ?] | ||
| + | * [http://social.technet.microsoft.com/wiki/contents/articles/6257.manually-merge-avhd-to-vhd-in-hyper-v.aspx Manually Merge .avhd to .vhd in Hyper-V] | ||
| + | |||
| + | [[Category:File Formats]] | ||
Revision as of 13:19, 19 September 2012
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The Virtual Hard Disk (VHD) commonly uses the .vhd extension.
This format is used to store virtual disk images by:
- Microsoft Virtual PC
- Microsoft Virtual Server
- Microsoft Hyper-V Server
Contents |
Image types
There are multiple types of Virtual Hard Disk (VHD) images:
- Fixed-size hard disk image; the image contains all data
- Dynamic-size (or sparse) hard disk image; the image contains used data only
- Differential (or differencing, or delta) hard disk image; the image contains changes relative to its parent image
Snapshots
Hyper-V has functionality to create snapshots.
These snapshots are stored in Snapshot Differencing Disk (AVHD) files which commonly uses the .avhd extension.
The snapshot can be interdependent on one-another, because they are differential images of the previous snapshot.
Windows integration
"Disk Management" in (at least) Windows 7 support attaching and creating Fixed and Dynamic VHD image files.
See Also
External Links
- VHD (file format), by Wikipedia
- Virtual Hard Disk Image Format Specification, by Microsoft, October 2006
- Virtual Hard Disk (VHD) image format, by the libvhdi project, September 2012
Snapshots
- Hyper-V Concepts - Snapshots
- Virtual Machine Snapshotting under Hyper-V
- Hyper-V SnapShot Files – AVHD and VHD? What The ?
- Manually Merge .avhd to .vhd in Hyper-V
Pages in category "Secure deletion"
The following 6 pages are in this category, out of 6 total.
