Nir, first of all, thanks a lot for the detailed description and the quick fix 
in 4.4!

I guess I'll be able to paste that single line fix into the 4.3. variant 
myself, but I'd rather see that included in the next 4.3 release, too: How 
would that work?

---
"OVA is not a backup solution":

From time to time, try to put youself into a user's shoes.

The fist thing you read about Export Domains, is that they are deprecated: That 
doesn't give you the warm fuzzy feeling that you are learning something useful 
when you start using them, especially in the context of a migration to the next 
release.

OVA on the other hand, stands for a maximum of interoperability and when given 
a choice between something proprietary and deprecated and a file format that 
will port pretty much everywhere, any normal user (who doesn't have the code 
behind the scene in his mind), will jump for OVA export/import.

Also it's just two buttons, no hassle, while it took me a while to get an 
Export domain defined, filled, detached, re-attached, and tested.

Again from a user's perspective: HCI gluster storage in oVirt is black magic, 
especially since disk images are all chunked up. For a user it will probably 
take many years of continous oVirt operation until he's confident that he'l 
recover VM storage in the case of a serious hickup and that whatever might have 
gone wrong or bitrot might have occured, won't carry over to an export domain. 
OVA files seem like a nice bet to recover your VM on whatever platform you can 
get back running in a minor disaster.

In many cases, it doesn't even matter you have to shut down the machine to do 
the export, because the machines are application level redundant or simply it's 
ok to have them down for a couple of minutes, if you know you can get them back 
up no matter what in a comparable time frame, oVirt farm dead or alive, e.g. on 
a bare metal machine.

And then my case, many of the images are just meant to move between an oVirt 
farm and a desktop hypervisor.

tl;dr

(working) OVA export and import IMHO are elemental and crucial functionality, 
without which oVirt can't be labelled a product.

I completely appreciate the new backup API, especially with the consistency 
enabled for running VMs; perhaps a little less that I'd have to purchase an 
extra product to do a fundamental operation with a similar ease as the OVA 
export/import buttons, but at least it's there.

That doesn't mean OVA in/ex isn't important or that in fact a shared 
import/export domain would be nice, too.

Thanks for your time!
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