[Users] How can I create a snapshot for virtual disks only?

Shu Ming shuming at linux.vnet.ibm.com
Thu Jun 28 01:38:32 UTC 2012


On 2012-6-28 9:20, Itamar Heim wrote:
> On 06/27/2012 08:57 PM, Shu Ming wrote:
>> On 2012-6-27 23:30, Michal Skrivanek wrote:
>>> That would make sense only when you are powered off, wouldn't it?
>>> Otherwise what's the point of disk snapshot with open transactions,
>>> buffers in mem, etc, without saving the state of the VM too?
>>
>> I understand syncing virtual disk state with the OS cache is a quite
>> challenge to a snapshot tool developers. However, it is a handy feature
>> for the users just want to back up their data in the disks without
>> stopping VM. As other virtualization solution support this feature, we
>> should narrow the gap to attract more users to oVirt.
>>
>
> actually, live snapshot today is only supported for disks, without the 
> RAM.
  I can not find the button to create a snapshot for disk only in engine 
3.1 beta release.  Are you talking about a undergoing project?
>
>>>
>>> Thanks,
>>> michal
>>>
>>> On 27 Jun 2012, at 17:26, Shu Ming <shuming at linux.vnet.ibm.com> wrote:
>>>
>>>> On 2012-6-27 23:19, Dafna Ron wrote:
>>>>> Hi,
>>>>>
>>>>> no. the snapshot is for the entire vm and it's disks.
>>>>>
>>>>>
>>>>> On 06/27/2012 05:31 PM, Shu Ming wrote:
>>>>>> Hi,
>>>>>>
>>>>>> I am testing oVirt engine 3.1 beta release 06-07. I tried
>>>>>> "snapshots-->create" button for a VM and it looked like that the
>>>>>> snapshot to be created was for both the running state of the system
>>>>>> and the virtual disks. I am wondering if there is any way to create
>>>>>> the snapshot only for the virtual disks of the VM in engine?
>>>>>>
>>>> Do we have future plan to make snapshot for it's disks?
>>>>
>>>> -- 
>>>> Shu Ming <shuming at linux.vnet.ibm.com>
>>>> IBM China Systems and Technology Laboratory
>>>>
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>


-- 
Shu Ming <shuming at linux.vnet.ibm.com>
IBM China Systems and Technology Laboratory





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