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

[Itamar Heim]

On 06/27/2012 10:29 PM, Shu Ming wrote:
>
> Sorry for confusion here. I attached the snapshot created. I don't think
> it is a standalone snapshot for disks(all eight) only. And the usage of
> the disk image snapshot should be bound with OS memory snapshot. The

there is currently no OS memory snapshot

> other problem is the VM must be paused when the snapshot is undergoing.
>
> On 2012-6-28 10:16, Itamar Heim wrote:
>> 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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>>
>
>