VMDK
VMDK Virtual Disk
VMDK (Virtual Machine Disk) is a file format that describes containers for virtual machine hard disk drives, originally developed by VMware.
What is VMDK Virtual Disk?
The VMDK format was created by VMware for their virtual products like VMware Workstation and ESXi. It encapsulates the complete state, partition table, and data of a virtual machine's hard drive into a single file or a set of split files, enabling easy deployment, backup, and migration across different hypervisors. You can use ConvertX tools like vmdk-to-qcow2 or qcow2-to-vmdk to seamlessly transition between VMware and KVM/QEMU environments.
Advantages
- Supports dynamic (thin-provisioned) and pre-allocated storage
- Can be split into multiple smaller files for easier file system compatibility
- Widely supported across major enterprise and desktop virtualization platforms
- Supports snapshots for capturing point-in-time states
Limitations
- Can suffer from fragmentation and performance overhead over time
- Large file sizes can be difficult to transfer without splitting
- Proprietary extensions can occasionally cause compatibility issues with non-VMware tools
How to open VMDK Virtual Disk files
VMware Workstation
VMware ESXi
Oracle VM VirtualBox
QEMU / KVM
7-Zip
Common use cases
- Running virtual operating systems in a desktop environment
- Deploying enterprise virtual appliances on cloud and server hardware
- Creating system backups and snapshots for disaster recovery
- Migrating virtual machines between different hypervisors using ConvertX
VMDK converters
Explore other formats
Frequently asked questions
A VMDK file is a virtual hard disk used by VMware virtual machines to store guest OS data, applications, and files.
You can open or mount VMDK files using alternative hypervisors like Oracle VirtualBox or extract their contents using archive utilities like 7-Zip.
Yes, you can easily convert VMDK virtual disks to the QCOW2 format using ConvertX's vmdk-to-qcow2 conversion tool.