Difference between pages "User talk:Nkeith" and "QCOW Image Format"

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'''Welcome to ''Forensics Wiki''!'''
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[[QEMU]] uses the '''QEMU Copy-On-Write (QCOW)''' files to store a disk image.
We hope you will contribute much and well.
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You will probably want to read the [[Help:Contents|help pages]].
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== MIME types ==
Again, welcome and have fun! [[User:Simsong|Simsong]] 19:21, 1 April 2010 (UTC)
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== File signature ==
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QCOW files start with hexadecimal: 0x51 0x46 0x49 0xfb (ASCII: "QFI.")
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== File types ==
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Currently there two are versions of the QCOW format; version 1 and 2. Version 2 is the preferred format.
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== Contents ==
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The QCOW format is used to store storage media data, e.g. disk images.
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The QCOW image file consists of:
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* the file header
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* the L1 table (cluster aligned)
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* the reference count table (cluster aligned)
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* reference count blocks
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* snapshot headers (8-byte aligned on cluster boundary)
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* clusters containing:
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** L2 tables
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** storage media data
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The clusters are 512 bytes of size
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== Encryption ==
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The QCOW2 format supports optional AES encryption
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== See Also ==
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* [[Disk Images]]
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== External Links ==
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* [http://people.gnome.org/~markmc/qcow-image-format-version-1.html The QCOW Image Format]
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* [http://people.gnome.org/~markmc/qcow-image-format.html The QCOW2 Image Format]
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[[Category:File Formats]]

Revision as of 08:53, 23 September 2012

QEMU uses the QEMU Copy-On-Write (QCOW) files to store a disk image.

MIME types

File signature

QCOW files start with hexadecimal: 0x51 0x46 0x49 0xfb (ASCII: "QFI.")

File types

Currently there two are versions of the QCOW format; version 1 and 2. Version 2 is the preferred format.

Contents

The QCOW format is used to store storage media data, e.g. disk images.

The QCOW image file consists of:

  • the file header
  • the L1 table (cluster aligned)
  • the reference count table (cluster aligned)
  • reference count blocks
  • snapshot headers (8-byte aligned on cluster boundary)
  • clusters containing:
    • L2 tables
    • storage media data

The clusters are 512 bytes of size

Encryption

The QCOW2 format supports optional AES encryption

See Also

External Links