Difference between revisions of "Sysadmin/Add resources to a VM"
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| − | + | === Hot-adding a virtio volume to a running VM === | |
| + | virsh vol-create-as housetree jita-srv 20G | ||
| + | virsh attach-disk jita /dev/housetree/jita-srv vdb | ||
=== Adding memory to a VM === | === Adding memory to a VM === | ||
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sudo virsh start "name_of_vm" | sudo virsh start "name_of_vm" | ||
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=== Extending the disk file of a VM === | === Extending the disk file of a VM === | ||
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sudo cat additional.raw >> "name_of_vm".raw | sudo cat additional.raw >> "name_of_vm".raw | ||
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Revision as of 12:21, 14 April 2012
Hot-adding a virtio volume to a running VM
virsh vol-create-as housetree jita-srv 20G virsh attach-disk jita /dev/housetree/jita-srv vdb
Adding memory to a VM
Shutdown the VM
sudo virsh shutdown "name_of_vm"
Edit the configuration of the VM
sudo virsh edit "name_of_vm"
... <memory>XXXXXX</memory> <--- XXXXXX is (number of gigabytes of memory * 1024 * 1024) <currentMemory>XXXXXX</currentMemory> <--- XXXXXX Should be the same as the previous line
Start the VM
sudo virsh start "name_of_vm"
Extending the disk file of a VM
Create a file containing the amount of space you want to add to the VM
sudo qemu-img create -f raw additional.raw <size>
Shutdown the VM ----- DO NOT SKIP THIS STEP. YOU WILL CORRUPT THE VM IF YOU DO THIS WHILE IT IS RUNNING
sudo virsh shutdown "name_of_vm"
Convert the VM to raw if needed
sudo qemu-img convert -f "name_of_vm".qcow2 -O raw "name_of_vm".raw
Add the additional space to the VM
sudo cat additional.raw >> "name_of_vm".raw