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

20 Mar 2018

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On Tue, Mar 20, 2018 at 4:26 PM, Eyal Shenitzky <eshenitz@redhat.com =
<mailto:eshenitz@redhat.com>> wrote:
Hi Andrei,
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I think you miss understand the concept of export domain.
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Export domain allows you to pass entities from one data center to =
another.
...
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The flow is:
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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.
=20
You can see more information here:
-  https://www.ovirt.org/documentation/admin-guide/chap-Storage/ =
<https://www.ovirt.org/documentation/admin-guide/chap-Storage/>
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On Tue, Mar 20, 2018 at 4:04 PM, Andrei Verovski <andreil1@starlett.lv =
<mailto:andreil1@starlett.lv>> wrote:
Hi,
=20
I have 2 data centers (with 1 node each because 1 have local data =
domain)
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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
=20
to DC #2, export -> 36bc8d5d-30e9-4df5-94cd-c837483c5e41 -> images -> =
12f48f07-7e93-4c66-b0e9-00efc1fec418, with these above listed files =
inside.
(screenshot attached)
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However, in =E2=80=9CImport Virtual machine(s)=E2=80=9D dialog this VM =
is not visible even after running =E2=80=9CLoad=E2=80=9D command inside =
import dialog.
Looks like for whatever reason oVirt don=E2=80=99t refresh content of =
OK, now I=E2=80=99ve 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 =E2=80=9Cclipboard=E2=80=9D in desktop metaphor) in whole oVirt =
setup, per 1 host engine.

this directory.
...
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How to instruct oVirt to refresh and index these files?
=20
Or this method won=E2=80=99t 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>
=20
Thanks.
Andrei
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 <Screen Shot 2018-03-20 at 15.53.34.jpg>
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=20
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--=20
Regards,
Eyal Shenitzky
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--=20
Regards,
Eyal Shenitzky
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D""><div =
dir=3D"ltr" class=3D"">On Tue, Mar 20, 2018 at 4:26 PM, Eyal Shenitzky =
<span dir=3D"ltr" class=3D""><<a href=3D"mailto:eshenitz@redhat.com" =
target=3D"_blank" class=3D"">eshenitz@redhat.com</a>></span> =
wrote:</div><div class=3D"gmail_extra"><div =
class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0 =
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr" =
class=3D"">Hi Andrei,<div class=3D""><br class=3D""></div><div =
class=3D"">I think you miss understand the concept of export =
domain.</div><div class=3D""><br class=3D""></div><div class=3D"">Export =
domain allows you to pass entities from one data center to =
another.</div></div></blockquote></div></div></div></blockquote><div><br =
class=3D""></div><div><br class=3D""></div><div>OK, now I=E2=80=99ve got =
it. Thanks for so clear and short explanation. It should go straight =
into the oVirt manual and QA.</div><div><br class=3D""></div><div>One =
Data Center can have only one Export storage domain, right =
?</div><div><br class=3D""></div><div>So 1 (single) export domain used =
as some kind of shared exchange buffer (VM =E2=80=9Cclipboard=E2=80=9D =
in desktop metaphor) in whole oVirt setup, per 1 host =
engine.</div><div><br class=3D""></div><br class=3D""><blockquote =
type=3D"cite" class=3D""><div class=3D""><div class=3D"gmail_extra"><div =
class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0 =
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr" =
class=3D""><div class=3D""><br class=3D""></div><div class=3D"">The flow =
is:</div><div class=3D""><br class=3D""></div><div class=3D"">1) Create =
an export domain in DC-A</div><div class=3D"">2) Export required =
entities to the export domain</div><div class=3D"">3) =
Deactivate (enter the storage domain to maintenance mode) and =
detach the export domain</div><div class=3D"">4)  Attach the export =
domain to DC-B and import the entities to it.</div><div class=3D""><br =
class=3D""></div><div class=3D"">You can see more information =
here:</div><div class=3D"">-  <a =
href=3D"https://www.ovirt.org/documentation/admin-guide/chap-Storage/" =
target=3D"_blank" class=3D"">https://www.ovirt.org/<wbr =
class=3D"">documentation/admin-guide/<wbr =
class=3D"">chap-Storage/</a></div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""></div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""></div></div><div =
class=3D"gmail_extra"><br class=3D""><div class=3D"gmail_quote">On Tue, =
Mar 20, 2018 at 4:04 PM, Andrei Verovski <span dir=3D"ltr" =
class=3D""><<a href=3D"mailto:andreil1@starlett.lv" target=3D"_blank" =
class=3D"">andreil1@starlett.lv</a>></span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex"><div =
style=3D"word-wrap:break-word;line-break:after-white-space" =
class=3D"">Hi,<div class=3D""><br class=3D""></div><div class=3D"">I =
have 2 data centers (with 1 node each because 1 have local data =
domain)</div><div class=3D""><br class=3D""></div><div class=3D"">Copied =
exported from DC #1, exports -> 1d7208ce-d3a1-4406-9638-fe7051<wbr =
class=3D"">562994 -> images =
-> 12f48f07-7e93-4c66-b0e9-00e<wbr class=3D"">fc1fec418, with 2 =
files inside</div><div class=3D"">fc469474-94fd-416b-b921-58604f<wbr =
class=3D"">46411c - 171 GB (seems like disk image)</div><div =
class=3D"">fc469474-94fd-416b-b921-58604f<wbr =
class=3D"">46411c.meta</div><div class=3D""><br class=3D""></div><div =
class=3D"">to DC #2, export -> 36bc8d5d-30e9-4df5-94cd-c83<wbr =
class=3D"">7483c5e41 -> images =
-> 12f48f07-7e93-4c66-b0e9-00e<wbr class=3D"">fc1fec418, with =
these above listed files inside.</div><div class=3D"">(screenshot =
attached)</div><div class=3D""><br class=3D""></div><div =
class=3D"">However, in =E2=80=9CImport Virtual machine(s)=E2=80=9D =
dialog this VM is not visible even after running =E2=80=9CLoad=E2=80=9D =
command inside import dialog.</div><div class=3D"">Looks like for =
whatever reason oVirt don=E2=80=99t refresh content of this =
directory.</div><div class=3D""><br class=3D""></div><div class=3D"">How =
to instruct oVirt to refresh and index these files?</div><div =
class=3D""><br class=3D""></div><div class=3D"">Or this method won=E2=80=99=
t work at all, and one have to import/export OVA images, or use lengthy =
procedure described by Fred Roland here ?</div><div class=3D""><a =
href=3D"http://lists.ovirt.org/pipermail/users/2018-February/087304.html" =
target=3D"_blank" class=3D"">http://lists.ovirt.org/piperma<wbr =
class=3D"">il/users/2018-February/087304.<wbr =
class=3D"">html</a></div><div class=3D""><br class=3D""></div><div =
class=3D"">Thanks.</div><div class=3D"">Andrei</div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""></div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""></div><div =
class=3D""> <span =
id=3D"cid:156AE382-B2F0-4B86-ADCA-50CE34CEAB4D"><Screen Shot =
2018-03-20 at 15.53.34.jpg></span></div></div><br =
class=3D"">______________________________<wbr =
class=3D"">_________________<br class=3D"">
Users mailing list<br class=3D"">
<a href=3D"mailto:Users@ovirt.org" target=3D"_blank" =
class=3D"">Users@ovirt.org</a><br class=3D"">
<a href=3D"http://lists.ovirt.org/mailman/listinfo/users" =
rel=3D"noreferrer" target=3D"_blank" =
class=3D"">http://lists.ovirt.org/mailman<wbr =
class=3D"">/listinfo/users</a><br class=3D"">
<br class=3D""></blockquote></div><span class=3D"HOEnZb"><font =
color=3D"#888888" class=3D""><br class=3D""><br clear=3D"all" =
class=3D""><div class=3D""><br class=3D""></div>-- <br class=3D""><div =
class=3D"m_8090615229373335197gmail_signature" =
data-smartmail=3D"gmail_signature"><div dir=3D"ltr" =
class=3D"">Regards,<div class=3D"">Eyal Shenitzky</div></div></div>
</font></span></div>
</blockquote></div><br class=3D""><br clear=3D"all" class=3D""><div =
class=3D""><br class=3D""></div>-- <br class=3D""><div =
class=3D"gmail_signature" data-smartmail=3D"gmail_signature"><div =
dir=3D"ltr" class=3D"">Regards,<div class=3D"">Eyal =
Shenitzky</div></div></div>
</div>
</div></blockquote></div><br class=3D""></body></html>=

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