[one-users] About virtual machine backup and restore question

[Rich Wellner]

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<liudewei at neusoft.com>  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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