Better storage efficiency because unallocated space can be used by another VM.For example, if you created 127 GB VHD but the virtual machine only used 40 GB on, then it means the disk space consumed on the host’s physical storage will also be 40 GB and will not consume full 127GB storage. When creating a dynamic VHD volume, you still must specify the size, but the host disk space usage is based on the how much data is being stored on that VHD volume. Higher potential of wasting storage capacity, if you make the VHD too largeĭynamic volume uses the concept of thin provisioning.There’s no way to reduce a fixed disk capacity once it has been created.Easy to copy virtual disk files between machine.Better prediction of host storage usage because the size is fixed, we don’t have to worry about overprovisioning resources.For example, if you create a 127 GB fixed VHD, then it means 127 GB disk space of the host storage will be dedicated for this VHD only. Fixed SizeĪ fixed VHD volume is simply taking up the size of the host disk space based on the size you decide. There are three types of Hyper-V VHD and each has their own pros and cons. It is important to understand the types of VHD so you can plan the host resource usage as efficiently as possible. When creating VM in Hyper-V manager, we will be prompted to choose the type of virtual hard disk (VHD) that you want to use. When you create a virtual machine using Hyper-V you have various options to choose virtual disk type.Īfter you install Hyper-V server role, Hyper-V Manager is used to creating, modify and manage virtual machines. There are two ways to install Hyper-V: one is to install it using Server Manager on a Windows Server as a server role, and the other way is using a separate product called Microsoft Hyper-V Server that runs over a bare metal environment. When you install Hyper-V on the server, the hypervisor is installed right above the hardware and below the operating system. ![]() Hyper-V is a type-1 hypervisor virtualization platform from Microsoft.
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