Changes
/* Snapshot */
== Snapshot ==
# Create a snapshot with state:
#* If the VM <code>vm-001</code> is running:
#** Save the state of VM <code>vm-001</code> to the file <code>vm-001.state</code> (This file can either be created on a RAM-Disk or directly in the retain location. This example however saves the file to a RAM-Disk): <syntaxhighlight lang="bash">virsh save vm-001 /path/to/ram-disk/vm-001.state</syntaxhighlight>
#** After this command, the VMs CPU and memory state is represented by the file <code>/path/to/ram-disk/vm-001.state</code> and the VM <code>vm-001</code> is shut down.
#* If the VM <code>vm-001</code> is shut down:
#** Create a fake state file for the VM: <syntaxhighlight lang="bash">echo "Machine is not runnung, no state file" > /path/to/ram-disk/vm-001.state</syntaxhighlight>
# Move the disk image <code>/path/to/images/vm-001.qcow2</code> to the retain location: <syntaxhighlight lang="bash">mv /path/to/images/vm-001.qcow2 /path/to/retain/vm-001.qcow2</syntaxhighlight>
#* '''Please note:''' The retain directory (<code>/path/to/retain/</code>) '''has to be''' on the same partition as the images directory (<code>/path/to/images/</code>). This will make the <code>mv</code> operation very fast (only renaming the inode). So the downtime (remember the VM <code>vm-001</code> is shut down) is as short as possible.
