Re: [ovirt-users] CBT question

[Yaniv Kaul]

On Tue, Sep 12, 2017 at 11:25 AM, Demeter Tibor  wrote:

> Dear Yaniv,
>
> Thank you for your reply.
>
> I have to backup ~35 VM those used around 7 TB disk. Could you show me an
> usable solution/script/software for backup these VMs?
>
> I don't want to backup fulls in everyday because it takes too long time
> and space...
>

Of course. You backup snapshots.
You can integrate with the backup API. See[1].
You can see an implementation by the community[2].
Y.


[1]
https://www.ovirt.org/documentation/admin-guide/chap-Backups_and_Migration/#backing-up-and-restoring-virtual-machines-using-the-backup-and-restore-api
[2] https://github.com/wefixit-AT/oVirtBackup


>
> Thanks in advance,
> R
> Tibor
>
>
>
> - 2017. szept.. 11., 16:14, Yaniv Kaul  írta:
>
>
>
> On Mon, Sep 11, 2017 at 4:17 PM, Demeter Tibor 
> wrote:
>
>> Dear Listmembers,
>>
>> Somebody know when will be available the CBT (changed block tracking)
>> feature in ovirt/rhev?
>>
>
> It has to be implemented first in QEMU - where it is still being worked on.
> We plan to take advantage of it after it is ready in QEMU (and libvirt of
> course).
>
>
>> We looking for an usable backup solution for our ovirt guests, but I've
>> see, there are some API limitation yet.
>>
>
> But nevertheless there are various backup solutions that can be used
> today, even if not as efficient as CBT.
> Y.
>
>
>>
>> Thanks in advance,
>> R
>>
>> Tibor
>>
>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>
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Re: [ovirt-users] CBT question

[Pavel Gashev]

The dirty bitmap is already working well enough in QEMU 2.6. It can be used via 
LibVirt qemu-monitor-command. The only issue is that dirty bitmaps do not 
sustain VM restarts, snapshot creating/deleting, and VM live migration. 
However, this is not a big issue if you perform backups often than these 
operations. Since backups are in the qcow2 format, they can be placed on the 
Export storage, and restored directly from oVirt.

It would be relative simple to implement third-party backup solution, if disk 
locking mechanics was accessible via oVirt API. Implement this directly in 
oVirt would be even simpler as a Live Export feature, since dirty bitmaps work 
exactly like snapshots, and oVirt already has most of required logic.


From: <users-boun...@ovirt.org> on behalf of Yaniv Kaul <yk...@redhat.com>
Date: Monday, 11 September 2017 at 17:14
To: Demeter Tibor <tdeme...@itsmart.hu>
Cc: users <users@ovirt.org>
Subject: Re: [ovirt-users] CBT question



On Mon, Sep 11, 2017 at 4:17 PM, Demeter Tibor 
<tdeme...@itsmart.hu<mailto:tdeme...@itsmart.hu>> wrote:
Dear Listmembers,

Somebody know when will be available the CBT (changed block tracking) feature 
in ovirt/rhev?

It has to be implemented first in QEMU - where it is still being worked on.
We plan to take advantage of it after it is ready in QEMU (and libvirt of 
course).

We looking for an usable backup solution for our ovirt guests, but I've see, 
there are some API limitation yet.

But nevertheless there are various backup solutions that can be used today, 
even if not as efficient as CBT.
Y.


Thanks in advance,
R

Tibor

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Re: [ovirt-users] CBT question

[Demeter Tibor]

Dear Yaniv, 

Thank you for your reply. 

I have to backup ~35 VM those used around 7 TB disk. Could you show me an 
usable solution/script/software for backup these VMs? 

I don't want to backup fulls in everyday because it takes too long time and 
space... 

Thanks in advance, 
R 
Tibor 

- 2017. szept.. 11., 16:14, Yaniv Kaul  írta: 

> On Mon, Sep 11, 2017 at 4:17 PM, Demeter Tibor < [ mailto:tdeme...@itsmart.hu 
> |
> tdeme...@itsmart.hu ] > wrote:

>> Dear Listmembers,

>> Somebody know when will be available the CBT (changed block tracking) 
>> feature in
>> ovirt/rhev?

> It has to be implemented first in QEMU - where it is still being worked on.
> We plan to take advantage of it after it is ready in QEMU (and libvirt of
> course).

>> We looking for an usable backup solution for our ovirt guests, but I've see,
>> there are some API limitation yet.

> But nevertheless there are various backup solutions that can be used today, 
> even
> if not as efficient as CBT.
> Y.

>> Thanks in advance,
>> R

>> Tibor

>> ___
>> Users mailing list
>> [ mailto:Users@ovirt.org | Users@ovirt.org ]
>> [ http://lists.ovirt.org/mailman/listinfo/users |
>> http://lists.ovirt.org/mailman/listinfo/users ]
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Re: [ovirt-users] CBT question

[Yaniv Kaul]

On Mon, Sep 11, 2017 at 4:17 PM, Demeter Tibor  wrote:

> Dear Listmembers,
>
> Somebody know when will be available the CBT (changed block tracking)
> feature in ovirt/rhev?
>

It has to be implemented first in QEMU - where it is still being worked on.
We plan to take advantage of it after it is ready in QEMU (and libvirt of
course).


> We looking for an usable backup solution for our ovirt guests, but I've
> see, there are some API limitation yet.
>

But nevertheless there are various backup solutions that can be used today,
even if not as efficient as CBT.
Y.


>
> Thanks in advance,
> R
>
> Tibor
>
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
___
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Users@ovirt.org
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[ovirt-users] CBT question

[Demeter Tibor]

Dear Listmembers, 

Somebody know when will be available the CBT (changed block tracking) feature 
in ovirt/rhev? 
We looking for an usable backup solution for our ovirt guests, but I've see, 
there are some API limitation yet. 

Thanks in advance, 
R 

Tibor 



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