7:46 a.m.
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Has anyone successfully completed a hosted-engine recovery on a multiple=20
host setup with production VMs?
Kind regards
Andrew
------ Original Message ------
From: "Andrew Dent" <adent(a)ctcroydon.com.au To:
"users" <users(a)ovirt.org Sent:
2/07/2017 2:22:16 PM
Subject: [ovirt-users] Recovering hosted-engine
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--></style </head <body><div>Has anyone successfully completed a
hosted-engine recovery on a=
multiple host setup with production VMs?</div><div><br
/></div><div id=3D"s=
ignature_old"><div id=3D"xb62ca86bd62b482"><div
style=3D"font-family: Tahom=
a;"><span id=3D"x89c8d9902b0345bca5fb60b10010a8ea"><font <div
id=3D"x136253a26533439c817a2d4cd93dbb00"><div
id=3D"signature_old"><di=
v id=3D"xea120d60c95044d"><div class=3D"WordSection1"><div
id=3D"xb71224f92=
0234978acc74f4d23143069"><div class=3D"WordSection1"><p
class=3D"MsoNormal"=
<div>------ Original Message ------</div <div>From: "Andrew Dent" <<a
href=3D"mailto:adent@ctcroydon.com.au">aden=
t(a)ctcroydon.com.au</a>&gt;</div
<div>To: "users" <<a
href=3D"mailto:users@ovirt.org">users@ovirt.org</a>=
></div <div>Sent: 2/07/2017 2:22:16
PM</div <div>Subject: [ovirt-users]
Recovering hosted-engine</div><div><br /></div <div id=3D"xa03d74168c5b47d"><blockquote
cite=3D"a55544f993c0aef5fbfa13e1ed=
78ca048e629118@localhost" type=3D"cite" class=3D"cite2" <div>Hi</div><div><br
/></div><div>A couple of questions about hosted-engin=
e recovery.</div><div>Part way through this URL, in the section "Workflow
f=
or Restoring the Self-Hosted Engine Environment"=C2=A0</div><div><a
href=3D=
"http://www.ovirt.org/documentation/self-hosted/chap-Backing_up_and_Restori=
ng_an_EL-Based_Self-Hosted_Environment/">http://www.ovirt.org/doc...
/self-hosted/chap-Backing_up_and_Restoring_an_EL-Based_Self-Hosted_Environm=
ent/</a></div><div>it looks like once the hosted-engine is recovered on
Hos=
t 1, the VMs on Host 2 and 3 will be running, but not accessible to the rec=
overed Hosted Engine.=C2=A0</div><div>Is that
correct?</div><div>If so, how =
to you remove host 2 and host 3 from the environment, then add back in aga=
in while keeping the VMs running?</div><div><br
/></div><div><div
<code style=3D"box-sizing: border-box; font-family: Menlo, Monaco, Consolas=
, 'Courier New', monospace; font-size: 14.4px; padding: 2px 4px; color: rgb=
(199, 37, 78); border-radius: 4px; font-variant-ligatures: normal; orphans: =
2; widows: 2; background-color: rgb(249, 242, 244);">Host 2</code><span
st=
yle=3D"color: rgb(51, 51, 51); font-family: 'Source Sans Pro', 'Open
Sans', =
'Helvetica Neue', Helvetica, Arial, sans-serif; font-variant-ligatures: no=
rmal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);">=C2=A0a=
nd=C2=A0</span><code style=3D"box-sizing: border-box; font-family: Menlo,
M=
onaco, Consolas, 'Courier New', monospace; font-size: 14.4px; padding: 2px=
4px; color: rgb(199, 37, 78); border-radius: 4px; font-variant-ligatures: n=
ormal; orphans: 2; widows: 2; background-color: rgb(249, 242, 244);">Host 3=
</code><span style=3D"color: rgb(51, 51, 51); font-family: 'Source Sans
Pro=
', 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
font-varian=
t-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, =
255);">=C2=A0are not recoverable in their current state. These hosts need=
to be removed from the environment, and then added again to the environment =
using the hosted-engine deployment script. For more information on these a=
ctions, see the Removing Non-Operational Hosts from a Restored Self-Hosted=
Engine Environment section below and=C2=A0</span><a
href=3D"http://www.ovir=
t.org/documentation/self-hosted/chap-Backing_up_and_Restoring_an_EL-Based_S=
elf-Hosted_Environment/chap-Installing_Additional_Hosts_to_a_Self-Hosted_En=
vironment" style=3D"box-sizing: border-box; color: rgb(97, 182, 14); text-d=
ecoration: none; font-family: 'Source Sans Pro', 'Open Sans',
'Helvetica Ne=
ue', Helvetica, Arial, sans-serif; font-variant-ligatures: normal; orphans: =
2; widows: 2; background-color: rgb(255, 255, 255);">Chapter 7: Installing =
Additional Hosts to a Self-Hosted Environment</a><span style=3D"color: rgb=
(51, 51, 51); font-family: 'Source Sans Pro', 'Open Sans', 'Helvetica
Neue'=
, Helvetica, Arial, sans-serif; font-variant-ligatures: normal; orphans: 2; =
widows: 2; background-color: rgb(255, 255,
255);">.</span></div></div><div=
<div class=3D"WordSection1"
<div id=3D"xb71224f920234978acc74f4d23143069"><div
class=3D"WordSection1"><=
p class=3D"MsoNormal"><font face=3D"Tahoma"><font
size=3D"3" style=3D"font-=
size: 12pt;">Kind r</font><span style=3D"font-size:
12pt;">egards</span></f=
ont></p><p class=3D"MsoNormal"><font size=3D"3"
style=3D"font-size: 12pt;"=
face=3D"Tahoma"><br /></font></p><p
class=3D"MsoNormal"><font size=3D"3" st=
yle=3D"font-size: 12pt;"
face=3D"Tahoma">Andrew=C2=A0</font></p></div></div=
</div
</div></div><div><br /></div
</blockquote></div </body></html --------=_MB15379295-79C3-4E7D-BA3E-C6F662EE3B38--
Hi
A couple of questions about hosted-engine recovery.
Part way through this URL, in the section "Workflow for Restoring the=20
Self-Hosted Engine Environment"
http://www.ovirt.org/documentation/self-hosted/chap-Backing_up_and_Restori=
ng_an_EL-Based_Self-Hosted_Environment/
it looks like once the hosted-engine is recovered on Host 1, the VMs
on=20
Host 2 and 3 will be running, but not accessible to the recovered=20
Hosted Engine.
Is that correct?
If so, how to you remove host 2 and host 3 from the environment, then=20
add back in again while keeping the VMs running?
Host 2 and Host 3 are not recoverable in their current state. These=20
hosts need to be removed from the environment, and then added again to=20
the environment using the hosted-engine deployment script. For more=20
information on these actions, see the Removing Non-Operational Hosts=20
from a Restored Self-Hosted Engine Environment section below and=20
Chapter 7: Installing Additional Hosts to a Self-Hosted Environment=20
<http://www.ovirt.org/documentation/self-hosted/chap-Backing_up_and_Restor=
ing_an_EL-Based_Self-Hosted_Environment/chap-Installing_Additional_Hosts_to=
_a_Self-Hosted_Environment>.
BTW: The link referring to chapter 7 is broken.
Kind regards
Andrew
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<?xml version=3D"1.0"
encoding=3D"utf-16"?><html><head<font size=3D"4" style=3D"font-size:
14pt;">Kind regards</font></p><p clas=
s=3D"MsoNormal"><font size=3D"4" style=3D"font-size:
14pt;"><br /></font></=
p><p class=3D"MsoNormal"><font size=3D"4"
style=3D"font-size: 14pt;">Andrew=
=C2=A0</font></p></div></div></div></div></div></div></font></span></div></=
div></div><div><br /></div><div><br /></div<br /></div><div>BTW: The link referring to chapter
7 is broken.=C2=A0</di=
v><div><br /></div><div
id=3D"signature_old"><div id=3D"x75154ce80e9e4bf"
8:12 a.m.
New subject: Recovering hosted-engine
On Mon, Jul 3, 2017 at 3:46 PM, Andrew Dent <adent(a)ctcroydon.com.au> wrote:
Has anyone successfully completed a hosted-engine recovery on a
multiple
host setup with production VMs?
I'd like to clarify that "recovery" can span a large spectrum of
flows, from a trivial "I did some change to the engine database
that broke stuff and I want to restore a backup I took prior to
this change" to a full system restoration including purchasing
and deploying new (perhaps different) hosts/network/storage
hardware, including many other flows in between.
So when you plan for recovery, you should define very well what
flows you plan to handle, and how you handle each.
The linked procedure correctly says it's "providing an example".
Kind regards
Andrew
------ Original Message ------
From: "Andrew Dent" <adent(a)ctcroydon.com.au>
To: "users" <users(a)ovirt.org>
Sent: 2/07/2017 2:22:16 PM
Subject: [ovirt-users] Recovering hosted-engine
Hi
A couple of questions about hosted-engine recovery.
Part way through this URL, in the section "Workflow for Restoring the
Self-Hosted Engine Environment"
http://www.ovirt.org/documentation/self-hosted/chap-Backing_up_and_Restor...
it looks like once the hosted-engine is recovered on Host 1, the VMs on Host
2 and 3 will be running, but not accessible to the recovered Hosted Engine.
Is that correct?
I am pretty certain that the procedure assumed that all hosts need restoration,
not that some are still up-and-running.
If so, how to you remove host 2 and host 3 from the environment, then
add
back in again while keeping the VMs running?
That's a good question.
Please try to describe the exact flow you have in mind. What's broken and
needs restoration, and how do you plan to do that?
Host 2 and Host 3 are not recoverable in their current state. These hosts
need to be removed from the environment, and then added again to the
environment using the hosted-engine deployment script. For more information
on these actions, see the Removing Non-Operational Hosts from a Restored
Self-Hosted Engine Environment section below and Chapter 7: Installing
Additional Hosts to a Self-Hosted Environment.
BTW: The link referring to chapter 7 is broken.
You are right. The link in the bottom of the page seems working.
Now pushed [1] to fix. Thanks for the report!
[1] https://github.com/oVirt/ovirt-site/pull/1056
Best,
--
Didi
2511
days inactive
2511
days old
1 comments
2 participants
participants (2)
-
Andrew Dent -
Yedidyah Bar David