How to create a live snapshow of a running KVM virtual machine
KVM Snapshotting and Cloning 101 Snapshotting First the VM must be in qcow2 format. Do this to check: virsh dumpxml nsx.example.com | grep -i qemu
Virtualization
How to convert a raw .img KVM file to a .qcow2 file
Qcow2 is a better format for various reasons, see this link. If you have a KVM host and some of the computers are in img
KVM Cheat Sheet
KVM Cheat Sheet Errors Requested operation is not valid: cannot resize the maximum memory on an active domain To increase the memory size: virsh setmaxmem
Proxmox Cluster Quick Start
Running a Cluster over a WAN You shouldn’t. Corosync needs 5 to 10 ms latency and is highly sensitive to jitter. We tried running it
How to deploy a new Cloud Image virtual machine VM image to a KVM server using libvirt
New KVM Setup Guide This is a guide on how to set up a new KVM image on a Ubuntu KVM installation. The other way
How to export a Proxmox VM to a KVM installation
Quick commands: qm list qm config 109 pvs vgs lvdisplay | grep 109 lvdisplay /dev/raid1/vm-109-disk-0 df -h pwd qemu-img convert -O qcow2 /dev/raid1/vm-109-disk-0 host.x.y.z.qcow scp
How to know you’ve overprovisioned Proxmox LVM thin disks – io-error with yellow triangle
Background One of your VMs might just stop working. When you look at the icon in the Proxmox explorer you see a yellow triangle and
How to identify Out of Memory (OOM) Problems with a Proxmox Host
If Proxmox runs out of RAM on the host, some VMs might suddenly just be switched off. This article has a few tips to see
Proxmox Cheat Sheet / Primer
This is the start of the Proxmox Cheat Sheet. We already have a few articles on Proxmox, as can be seen here. To start our
How unlock a VM in Proxmox
Background When you can’t shutdown or reboot or even stop a VM in Proxmox it’s quite distressing. Surely it should just reboot when you press