[ovirt-users] Q: Copying VMs between Export domains of different data centres

[Andrei Verovski]

> On Tue, Mar 20, 2018 at 4:26 PM, Eyal Shenitzky <eshenitz at redhat.com <mailto:eshenitz at redhat.com>> wrote:
> Hi Andrei,
> 
> I think you miss understand the concept of export domain.
> 
> Export domain allows you to pass entities from one data center to another.


OK, now I’ve got it. Thanks for so clear and short explanation. It should go straight into the oVirt manual and QA.

One Data Center can have only one Export storage domain, right ?

So 1 (single) export domain used as some kind of shared exchange buffer (VM “clipboard” in desktop metaphor) in whole oVirt setup, per 1 host engine.


> 
> The flow is:
> 
> 1) Create an export domain in DC-A
> 2) Export required entities to the export domain
> 3) Deactivate (enter the storage domain to maintenance mode) and detach the export domain
> 4)  Attach the export domain to DC-B and import the entities to it.
> 
> You can see more information here:
> -  https://www.ovirt.org/documentation/admin-guide/chap-Storage/ <https://www.ovirt.org/documentation/admin-guide/chap-Storage/>
> 
> 
> 
> 
> 
> On Tue, Mar 20, 2018 at 4:04 PM, Andrei Verovski <andreil1 at starlett.lv <mailto:andreil1 at starlett.lv>> wrote:
> Hi,
> 
> I have 2 data centers (with 1 node each because 1 have local data domain)
> 
> Copied exported from DC #1, exports -> 1d7208ce-d3a1-4406-9638-fe7051562994 -> images -> 12f48f07-7e93-4c66-b0e9-00efc1fec418, with 2 files inside
> fc469474-94fd-416b-b921-58604f46411c - 171 GB (seems like disk image)
> fc469474-94fd-416b-b921-58604f46411c.meta
> 
> to DC #2, export -> 36bc8d5d-30e9-4df5-94cd-c837483c5e41 -> images -> 12f48f07-7e93-4c66-b0e9-00efc1fec418, with these above listed files inside.
> (screenshot attached)
> 
> However, in “Import Virtual machine(s)” dialog this VM is not visible even after running “Load” command inside import dialog.
> Looks like for whatever reason oVirt don’t refresh content of this directory.
> 
> How to instruct oVirt to refresh and index these files?
> 
> Or this method won’t work at all, and one have to import/export OVA images, or use lengthy procedure described by Fred Roland here ?
> http://lists.ovirt.org/pipermail/users/2018-February/087304.html <http://lists.ovirt.org/pipermail/users/2018-February/087304.html>
> 
> Thanks.
> Andrei
> 
> 
> 
> 
>  <Screen Shot 2018-03-20 at 15.53.34.jpg>
> 
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> 
> 
> 
> 
> -- 
> Regards,
> Eyal Shenitzky
> 
> 
> 
> -- 
> Regards,
> Eyal Shenitzky

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