![]() Most guides show you how to use a virtual machine’s property sheet to resize a virtual hard disk. Do I Need to Connect the Virtual Disk to a Virtual Machine to Resize It? However, the act of resizing the virtual disk does not change. Different guest operating systems might react differently to a resize event, and the steps that you take for the guest’s file system will vary. The guest operating system and file system do not matter. Does Hyper-V Virtual Disk Resize Work with Linux Virtual Machines? If the virtual disk is on the virtual SCSI chain, then you can resize it online. The generation of the virtual machine does not matter for virtual hard disk resizing. If the VM attached the disk in question to its virtual SCSI chain, then yes, you can resize the virtual disk while the virtual machine is online.ĭoes Online VHDX Resize Work with Generation 1 Hyper-V VMs?.If the VM attached the disk in question to its virtual IDE chain, then no, you cannot resize the virtual disk while the virtual machine is online.If the virtual disk in question is the VHD type, then no, it cannot be resized online. ![]() Can I Resize a Hyper-V Virtual Machine’s Virtual Hard Disks Online?Ī very important question: do you need to turn off a Hyper-V virtual machine to resize its virtual hard disks? The answer: sometimes. We have another article that goes into detail on this subject. The resize directions that I show in this article will grow or shrink a virtual disk file, but you have to prepare the contents before a shrink operation. Growing a VHDX doesn’t require any changes inside the VHDX. If the virtual machine is Running, then there are additional restrictions for resizing its virtual hard disks.If the virtual machine is Saved or has checkpoints, none of its disks can be resized.If the virtual machine is Off, any of its disks can be resized as though no one owned them.If a virtual hard disk belongs to a virtual machine, the rules change a bit: If no virtual machine owns the virtual disk, then you can operate on it directly without any additional steps. The tools rely on a service that only exists with Hyper-V. The shrink operation must occur on a system with Hyper-V installed. You will need to perform additional steps for the contents. A VHD/X resize operation does not stand alone. The files, partitions, formatting - all of that remains the same. Resizing a virtual disk file only changes the file. However, you cannot resize an AVHDX file (a differencing disk automatically created by the checkpoint function). You can resize any of Hyper-V’s three layout types (fixed, dynamically expanding, and differencing). As far as I know, all links to it have gone stale. Once upon a time, a tool was floating around the Internet that would do it. We can shrink VHDX files with only a bit of work. We can grow both the VHD and VHDX types easily. 2016 added a brokered form of VHDX called a “VHD Set”, which follows the same resize rules as VHDX. Hyper-V uses two different formats for virtual hard disk files: the original VHD and the newer VHDX. Both Hyper-V Server (2016+) and Client Hyper-V (Windows 10) have this capability. In this article, we’re going to examine Hyper-V’s ability to resize virtual hard disks. Among them is the ability to change our minds about almost any provisioning decision. We get lots of cool tricks with virtualization.
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