Difference between revisions of "VMWare Virtual Disk Format (VMDK)"

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== Image types ==
 
== Image types ==
There are multiple types of VMWare Virtual Disk Format (VMDK) data files:
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There are multiple types of VMWare Virtual Disk Format (VMDK) files:
* '''2GbMaxExtentFlat''' (or '''twoGbMaxExtentFlat'''); descriptor file (name.vmdk) with RAW data extent files (name-f###.vmdk). This image type is basically a [[Raw Image Format|split RAW image]].
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* '''2GbMaxExtentFlat''' (or '''twoGbMaxExtentFlat'''); descriptor file (name.vmdk) with RAW extent data files (name-f###.vmdk). This image type is basically a [[Raw Image Format|split RAW image]].
* '''2GbMaxExtentSparse''' (or '''twoGbMaxExtentSparse'''); descriptor file (name.vmdk) with VMDK sparse data extent files (name-s###.vmdk)
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* '''2GbMaxExtentSparse''' (or '''twoGbMaxExtentSparse'''); descriptor file (name.vmdk) with VMDK sparse extent data files (name-s###.vmdk)
* '''monolithicSparse'''; VMDK sparse data extent file (name.vmdk) which contains the descriptor file data.
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* '''monolithicFlat'''; descriptor file (name.vmdk) with RAW extent data file (name-f001.vmdk). This image type is basically a [[Raw Image Format|RAW image]].
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* '''monolithicSparse'''; VMDK sparse extent data file (name.vmdk) which contains the descriptor file data.
  
 
== Descriptor file ==
 
== Descriptor file ==
 
The descriptor file defines how and where the data of the VMDK image is stored. The data is stored in extent data files.
 
The descriptor file defines how and where the data of the VMDK image is stored. The data is stored in extent data files.
  
== Extent file types ==
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== Extent data file types ==
There are multiple types extent files:
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There are multiple types extent data files:
 
* RAW extent data file or device
 
* RAW extent data file or device
 
* VMDK sparse extent data file
 
* VMDK sparse extent data file
 
* COWD sparse extent data file
 
* COWD sparse extent data file
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 +
Note that the '''VMDK sparse extent data file''' can be in a '''dirty state''' (or uncleanShutdown).
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== See Also ==
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* [[Disk Images]]
  
 
== External Links ==
 
== External Links ==
 
* [http://www.vmware.com/support/developer/vddk/vmdk_50_technote.pdf?src=vmdk Virtual Disk Format 5.0], by [[VMWare]]
 
* [http://www.vmware.com/support/developer/vddk/vmdk_50_technote.pdf?src=vmdk Virtual Disk Format 5.0], by [[VMWare]]
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* [https://googledrive.com/host/0B3fBvzttpiiSQ1dOUmhqMkR2cm8/VMWare%20Virtual%20Disk%20Format%20(VMDK).pdf VMware Virtual Disk (VMDK) format specification], by the [[libvmdk|libvmdk project]]
  
 
[[Category:File Formats]]
 
[[Category:File Formats]]

Latest revision as of 01:24, 15 July 2013

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Image types

There are multiple types of VMWare Virtual Disk Format (VMDK) files:

  • 2GbMaxExtentFlat (or twoGbMaxExtentFlat); descriptor file (name.vmdk) with RAW extent data files (name-f###.vmdk). This image type is basically a split RAW image.
  • 2GbMaxExtentSparse (or twoGbMaxExtentSparse); descriptor file (name.vmdk) with VMDK sparse extent data files (name-s###.vmdk)
  • monolithicFlat; descriptor file (name.vmdk) with RAW extent data file (name-f001.vmdk). This image type is basically a RAW image.
  • monolithicSparse; VMDK sparse extent data file (name.vmdk) which contains the descriptor file data.

Descriptor file

The descriptor file defines how and where the data of the VMDK image is stored. The data is stored in extent data files.

Extent data file types

There are multiple types extent data files:

  • RAW extent data file or device
  • VMDK sparse extent data file
  • COWD sparse extent data file

Note that the VMDK sparse extent data file can be in a dirty state (or uncleanShutdown).

See Also

External Links