Commands for KVM hypervisor management

Some commands for KVM hypervisor management using different tools

Last update: 27.07.2015

Help
virsh help
virsh help <command>
virsh help list

Display hypervisor info
virsh nodeinfo

List all VMs
virsh list −−all

Start VM
virsh start <vmname>
virsh start testvm1

Shutdown VM
virsh shutdown <vmname|id>
virsh shutdown testvm1

Power off VM
virsh destory <vmname>
virsh destory testvm1

Suspend/pause VM
virsh suspend <vmname|id>
virsh suspend testvm1

Resume VM
virsh resume <vmname|id>
virsh resume testvm1

Save VM to a file
virsh save <vmname>
virsh save testvm1

Restore VM from file
virsh restore <vmname>
virsh restore testvm1

Get VM info
virsh dominfo <vmname>
virsh dominfo testvm1

Change the maximum memory allocation limit in the guest VM
virsh setmaxmem <vmname> <newmemsize> −−config
virsh setmaxmem testvm1 4096M −−config
virsh setmaxmem testvm1 4G −−config

Change the current memory allocation in the guest VM
virsh setmem <vmname> <newmemsize> −−config
virsh setmem testvm1 4096M −−config
virsh setmem testvm1 4G −−config

Edit the XML configuration for a guest VM
virsh edit <vmname>
virsh edit testvm1

Clone a VM
virt-clone -o <sourcevm> -n <destinationvm> -f <destination_disk_file>
virt-clone -o testvm1 -n testvm1-clone -f testvm1-clone.qcow2

More inforamtion
VIRSH command reference – https://libvirt.org/sources/virshcmdref/html-single/

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