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

[Itamar Heim]

On 06/27/2012 09:54 PM, Rami Vaknin wrote:
> On 06/28/2012 04:51 AM, Itamar Heim wrote:
>> On 06/27/2012 09:38 PM, Shu Ming wrote:
>>> 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?
>
> The is no option to save a single disk in webadmin.
>>
>> live snapshot is for disks only, not for RAM.
>> so the live snapshot button only snapshots the disks already.

there is a mix of two things here:
1. taking snapshot of a subset of the disks.
2. taking snapshot of disks + ram


>>
>>>>
>>>>>>
>>>>>> 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
>>>>>
>>>>>
>>>>
>>>
>>>
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