Browse Definitions :
File Extension

VMDK File Format

Virtual Machine Disk file for VMware virtual machines

The VMDK file extension is associated with the Virtual Machine Disk (VMDK) format specification used with VMware virtual machine files. 

Non-virtualized computers load and execute hundreds or thousands of individual files, including operating-system kernel files, device drivers, application components and data files. Virtualization abstracts the software from the underlying hardware and puts all the constituent data for a given virtual machine (VM) in a single disk file. The disk file is essentially a complete and independent virtual machine. 

A disk file with the VMDK extension is a virtual machine using VMware virtualization products or other platforms that support VMDK files such as Sun XVM, QEMU, or VirtualBox.

The VMDK file format competes with the Microsoft Virtual Hard Disk (VHD) format used with Virtual Server and Hyper-V hypervisors.

 

Learn more about VMDK files:

Stephen J. Bigelow discusses the VMDK file format in this tip. 

See questions and answers about virtual machines.

SearchVMware.com offers news, learning resources and expert advice about server and desktop virtualization.

This was last updated in September 2010
Browse File Extensions Alphabetically:

Ask a Question. Find an Answer.

Ask your peers a question about this file extension.

Ask a Question

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

SearchCompliance

  • compliance audit

    A compliance audit is a comprehensive review of an organization's adherence to regulatory guidelines.

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

SearchSecurity

  • Transport Layer Security (TLS)

    Transport Layer Security (TLS) is a protocol that provides authentication, privacy, and data integrity between two communicating ...

  • van Eck phreaking

    Van Eck phreaking is a form of electronic eavesdropping that reverse engineers the electromagnetic fields (EM fields) produced by...

  • zero-trust model (zero trust network)

    The zero trust model is a security model used by IT professionals that requires strict identity and device verification ...

SearchHealthIT

SearchDisasterRecovery

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

  • business continuity software

    Business continuity software is an application or suite designed to make business continuity planning/business continuity ...

  • business continuity policy

    Business continuity policy is the set of standards and guidelines an organization enforces to ensure resilience and proper risk ...

SearchStorage

  • solid-state storage

    Solid-state storage (SSS) is a type of computer storage media made from silicon microchips. SSS stores data electronically ...

  • persistent storage

    Persistent storage is any data storage device that retains data after power to that device is shut off. It is also sometimes ...

  • computational storage

    Computational storage is an information technology (IT) architecture in which data is processed at the storage device level to ...

Close