What Is Flat.vmdk Jun 2026

VMDK (Virtual Machine Disk) is a file format used for storing virtual hard disks for VMware virtual machines. The VMDK format allows for the creation of virtual hard disks that can be used by a virtual machine. There are several types of VMDK files, each with its own characteristics, such as:

Because Flat VMDKs are performance hogs but storage pigs, administrators often use tools like vmkfstools or VMware Converter to turn a (Preallocated) disk into a Thin (Dynamic) disk. what is flat.vmdk

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