We are on 2.0.1 and when we try to start a stopped image, it says that
cannot be done because it's in the wrong state. Is the below a
reference to enhancements in 2.2?
rw2
On 3/22/11 6:03 AM, Daniel Molina wrote:
Hi,
On 18 March 2011 10:07, liudewei<[email protected]> wrote:
Hello，
About virtual machine backup and restore question,
1-Through OpenNebula Provides‘ functionality to achieve the virtual machine
make image template？
if it is so, use one.vm.savedisk of xml-rpc API implement it？
2-Ours Big Cloud Eelastic Completing System is need to be achieve virtual
machine backup and restore function，
Do you think through OpenNebula can be realize it？or Do you have any good
way to achieve？
You can use the save_as functionality [1] in order to get a Virtual
Machine backup. If you run the following command
$ onevm saveas<vm_id> <disk_id> <image_name>
the specified Virtual Machine disk will be saved after a shut-down in
the new image (image_name).
On the other hand when you stop a Virtual Machine, a checkpoint is
generated containing the VM state [2]. This checkpoint and the disks
files, that you can find inside the VMDIR [3, 4], are used to restore
the VM keeping its state.
Moreover, we are improving the Image repository functionality, for
upcoming releases, adding new features like snapshotting of running
VMs.
Regards.
References:
[1] http://www.opennebula.org/documentation:rel2.2:img_guide#save_changes
[2]
http://www.opennebula.org/documentation:rel2.2:vm_guide#virtual_machine_life-cycle
[3]
http://www.opennebula.org/documentation:rel2.2:ignc#verifying_the_installation
[4] http://www.opennebula.org/documentation:rel2.2:sm
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