4.1.0
Hypervisor: KVM 6.3
KVM snapshot is supported for KVM 6.2. For KVM 6.3, we do not know if disk_only snapshot
is supported or not. This bug fix is to investigate this snapshot feature.
There are several types of snapshots:
Disk snapshot saves the content of the disks at a desiginated point of time;
VM state snapshot tracks only the state of RAM and all other resources in use by the VM;
System checkpoint captures both the disk and the VM state.
The current KVM takes a long time to take a disk snapshot, where the VM can be unresponsive for several minutes. We would like to investigate and find out if the new KVM support the disk-only snapshot option.
There are 2 tasks :
On a kvm system, we need to:
Command: snapshot-create-as <snapshot-name> "description" --disk-only