[Users] Hot Snapshotting of virtual disks

[Jason Lawer]

Hi Shu,

Sorry I didn't go into more detail, yes I intend to copy the snapshot to a different medium (potentially to a DR site, at the very least to an independent NAS). The snapshot is just so I can grab a consistent copy of the disk (even though I understand it risks filesystem corruption due to incomplete writes) If oVirt now supports hot snapshots it in 3.1 we will look into this. 

Jason




On 18/10/2012, at 3:29 PM, Shu Ming <shuming at linux.vnet.ibm.com> wrote:

> Basically, backup is different from snapshotting. Backup should have another storage different from the current share storage to store the disk content. oVirt 3.1 does have support for live snapshot of the VM disks and Qemu 1.1 is required at least to support this operation. In oVirt 3.1, you can also create an backup domain to store the VM disks, but I think it is not the real backup to another physical storage. So you may have to copy the snapshot made to other physical storage manually .
> 
> 2012-10-18 9:20, Jason Lawer:
>> Hi,
>> 
>> Can anyone give advice on what they are using for backup on their ovirt deployments. We have been using tar balls & rsync on our linux servers, but are looking for something more manageable and the number of servers grows rapidly.
>> 
>> I ask because I have been looking at a few options. The first idea that came to mind was a hot snapshot of the virtual disk, however from what I can see ovirt won't allow that. Most of the others have serious drawbacks, so I wanted to know if anyone had a silver bullet before I put more time into it.
>> 
>> 
>> Jason
>> _______________________________________________
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>> http://lists.ovirt.org/mailman/listinfo/users
>> 
> 
> 
> -- 
> ---
> 舒明 Shu Ming
> Open Virtualization Engineerning; CSTL, IBM Corp.
> Tel: 86-10-82451626  Tieline: 9051626 E-mail: shuming at cn.ibm.com or shuming at linux.vnet.ibm.com
> Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC
> 
>