![]() ![]() ![]() The main advantage of using this feature is that you are not wasting the disk space on the host before it is required, but there is a disadvantage associated with it in that it results in a slow performance if disk expansion happens pretty frequently. However, during the creation of a dynamically expanding disk, you specify a maximum capacity, which is the maximum capacity the disk will expand to. Dynamically allocated hard drive – the disk image will be created with a minimal size, but it grows automatically when more space is needed by the guest operating system.You can create two kinds of disk images: fixed size images or dynamically allocated images: HDD – the image file of Parallels Version 2 format.VHD – the Microsoft format of a virtual hard disk.VMDK – the VMware format of a virtual hard disk.VDI – also known as Virtual Disk Image.These two types refer to thick and thin provisioning.įour types of disk images are supported by VirtualBox: Upon creation, the entire size of the virtual disk might be used for the image or the image might be dynamically expanded. It has size that is basically specified when you create the VM. A virtual disk image is similar to a physical hard disk. When a guest VM tries to access these disk images, the read/write disk access is redirected by VirtualBox to the virtual disk image. In VirtualBox, guest VMs accesses virtual disk images that are stored on the physical hard disk in the host computer. ![]()
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