How do I move my KVM to another host?

5 Answers

Table of Contents

copy the VM’s disks from /var/lib/libvirt/images on src host to the same dir on destination host.
on the source host run virsh dumpxml VMNAME > domxml.xml and copy this xml to the destination host.
on the destination host run virsh define domxml.xml.

How is live migration done?

Live migration is usually performed when a physical host machine (computer or server) needs maintenance or an update, or when a VM must be switched to a different host. The process transfers the VM memory, network connectivity and storage. Most of the migration occurs while the OS continues to run.

How do I move a KVM image?

KVM – Move Guest to Another Host:

stop the virtual machine (using poweroff or other command in the VM itself), then wait for stopped state in virt-manager (or virsh)
move the image file to new location.
change image location in VM definition :

Can you vMotion without shared storage?

vMotion does not require environments with shared storage. This is useful for performing cross-cluster migrations, when the target cluster machines might not have access to the storage of the source cluster. Processes that are working on the virtual machine continue to run during the migration with vMotion.

What’s the difference between QEMU and KVM?

So to conclude: QEMU is a type 2 hypervisor that runs within user space and performs virtual hardware emulation, whereas KVM is a type 1 hypervisor that runs in kernel space, that allows a user space program access to the hardware virtualization features of various processors.

What are the two types of migrations between VM hosts?

The movement of VMs from one resource to another, such as from one physical host to another physical host, or data store to data store, is known as VM migration. There are two types of VM migration: cold and live. Cold migration occurs when the VM is shut down. Live migration occurs while the VM is actually running.

What is the difference between live migration and quick migration?

The only difference between ‘Quick Storage Migration’ and ‘Live Migration’ is that the first one moves virtual machine storage from one location to another location and later one is capable of moving virtual machine along with the storage from one node to another node in the cluster.

Where are KVM images stored?

/var/lib/libvirt/images
The default KVM virtual storage location is /var/lib/libvirt/images meaning, that any new virtual machines created via Virtual Machine Manager will be stored within this location.

How do I copy a KVM virtual machine?

Introduction: You can use a simple command named virt-clone. It is a command line utility for cloning existing virtual machine images using the “libvirt” hypervisor management library. It will copy the disk images of any existing virtual machine, and define a new guest with an identical virtual hardware configuration.

Which are 2 requirements for vMotion without shared storage?

Requirements and Limitations for vMotion Without Shared Storage

The hosts must be licensed for vMotion.
The hosts must be running ESXi 5.1 or later.
The hosts must meet the networking requirement for vMotion.
The virtual machines must be properly configured for vMotion.