2:32 p.m.
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On 8 Oct 2015, at 17:48, Andrea Ghelardi wrote:
Hallo,
I needed a quick confirmation on this subject.
=20
Our environment is Ovirt 3.511 (yes, I=92ll upgrade soon, I know) =
running on a
Centos 6.6 hosted engine VM on a cluster of Centos 6.6 =
physical servers.
=20
Since Ovirt 3.6x will be compatible with Centos 7 hypervisor only, how =
I=92m
supposed to upgrade hosted engine, VM and HOSTs?
=20
i.e. readme tells us the well known procedure (put hosted eng in =
maintenance,
upgrade, etc) but I will eventually end in a scenario where =
my hosted engine 3.6 will run on centos 7 VM running (on) a lot of =
centos 6.6 servers...
=20
Please tell me I have not to create a totally different datacenter and =
export
-> import all VMs=85
nono, the upgrade is live and all your VMs can keep humming. But there =
are manual steps involved:
Simone can probably update about Hosted Engine which would be somewhat =
special, but at least for regular VMs you can currently use:
1) create a new cluster with same settings as your existing cluster
2) remove one host from the old cluster (the one to be =
upgraded/reinstalled to EL7). While moving the host to maintenance your =
VMs will be migrated to other EL6 hosts in that cluster (make sure you =
have enough capacity to do that beforehand, of course:)
3) upgrade/reinstall the host with EL7. If youdon't have anything custom =
on the host reinstallation might be the best option
4) add it to the new cluster, installing/deploying it via UI, then it =
should come up - this is your EL7-based cluster now
5) manually migrate (Migrate To button) some of your VMs from the old =
cluster to the new one (there's an advanced section in the dialog, =
allowing you cross-cluster migrations
6) repeat until all your hosts and VMs are on EL7-based cluster, then =
you can decommission it, and perhaps rename the cluster back to its =
original name
Thanks,
michal
=20
Thank you!
Andrea Ghelardi
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
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<html><head><base href=3D"x-msg://7846/"></head><body
style=3D"word-wrap: =
break-word; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space; "><br><div><div>On 8 Oct 2015, at 17:48,
Andrea =
Ghelardi wrote:</div><br
class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><span class=3D"Apple-style-span"
style=3D"border-collapse: =
separate; font-family: Helvetica; font-style: normal; font-variant: =
normal; font-weight: normal; letter-spacing: normal; line-height: =
normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; =
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; =
-webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: =
0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div =
lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72"><div
=
class=3D"WordSection1" style=3D"page: WordSection1; "><div =
style=3D"margin-top: 0in; margin-right: 0in; margin-left: 0in; =
margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, =
sans-serif; ">Hallo,</div><div style=3D"margin-top: 0in;
margin-right: =
0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif; ">I needed a quick confirmation on =
this subject.</div><p class=3D"MsoNormal" style=3D"margin-top:
0in; =
margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: =
11pt; font-family: Calibri, sans-serif; "> </p><div =
style=3D"margin-top: 0in; margin-right: 0in; margin-left: 0in; =
margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, =
sans-serif; ">Our environment is Ovirt 3.511 (yes, I=92ll upgrade soon, =
I know) running on a Centos 6.6 hosted engine VM on a cluster of Centos =
6.6 physical servers.</div><p class=3D"MsoNormal"
style=3D"margin-top: =
0in; margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif; "> </p><div
=
style=3D"margin-top: 0in; margin-right: 0in; margin-left: 0in; =
margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, =
sans-serif; ">Since Ovirt 3.6x will be compatible with Centos 7 =
hypervisor only, how I=92m supposed to upgrade hosted engine, VM and =
HOSTs?</div><p class=3D"MsoNormal" style=3D"margin-top: 0in; =
margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: =
11pt; font-family: Calibri, sans-serif; "> </p><div =
style=3D"margin-top: 0in; margin-right: 0in; margin-left: 0in; =
margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, =
sans-serif; ">i.e. readme tells us the well known procedure (put hosted =
eng in maintenance, upgrade, etc) but I will eventually end in a =
scenario where my hosted engine 3.6 will run on centos 7 VM running (on) =
a lot of centos 6.6 servers...</div><p class=3D"MsoNormal" =
style=3D"margin-top: 0in; margin-right: 0in; margin-left: 0in; =
margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, =
sans-serif; "> </p><div style=3D"margin-top: 0in;
margin-right: =
0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif; ">Please tell me I have not to create =
a totally different datacenter and export -> import all =
VMs=85</div></div></div></span></blockquote><div><br></div>nono,
the =
upgrade is live and all your VMs can keep humming. But there are manual =
steps involved:<br><div><br></div>Simone can probably update about
=
Hosted Engine which would be somewhat special, but at least for regular =
VMs you can currently use:</div><div>1) create a new cluster with same =
settings as your existing cluster</div><div>2) remove one host from the =
old cluster (the one to be upgraded/reinstalled to EL7). While moving =
the host to maintenance your VMs will be migrated to other EL6 hosts in =
that cluster (make sure you have enough capacity to do that beforehand, =
of course:)</div><div>3) upgrade/reinstall the host with EL7. If =
youdon't have anything custom on the host reinstallation might be the =
best option</div><div>4) add it to the new cluster, installing/deploying =
it via UI, then it should come up - this is your EL7-based cluster =
now</div><div>5) manually migrate (Migrate To button) some of your VMs =
from the old cluster to the new one (there's an advanced section in the =
dialog, allowing you cross-cluster migrations</div><div>6) repeat until =
all your hosts and VMs are on EL7-based cluster, then you can =
decommission it, and perhaps rename the cluster back to its original =
name</div><div><br></div><div>Thanks,</div><div>michal</div><div><br><bloc=
kquote type=3D"cite"><span class=3D"Apple-style-span" =
style=3D"border-collapse: separate; font-family: Helvetica; font-style: =
normal; font-variant: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; orphans: 2; text-align: -webkit-auto; =
text-indent: 0px; text-transform: none; white-space: normal; widows: 2; =
word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; =
-webkit-border-vertical-spacing: 0px; =
-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div =
lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72"><div
=
class=3D"WordSection1" style=3D"page: WordSection1; "><p =
class=3D"MsoNormal" style=3D"margin-top: 0in; margin-right: 0in; =
margin-left: 0in; margin-bottom: 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif; "> </p><div style=3D"margin-top: 0in;
=
margin-right: 0in; margin-left: 0in; margin-bottom: 0.0001pt; font-size: =
11pt; font-family: Calibri, sans-serif; ">Thank you!</div><div =
style=3D"margin-top: 0in; margin-right: 0in; margin-left: 0in; =
margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, =
sans-serif; ">Andrea =
Ghelardi</div></div>_______________________________________________<br>Use=
rs mailing list<br><a href=3D"mailto:Users@ovirt.org"
style=3D"color: =
rgb(5, 99, 193); text-decoration: underline;
">Users(a)ovirt.org</a><br><a =
href=3D"http://lists.ovirt.org/mailman/listinfo/users" style=3D"color: =
rgb(5, 99, 193); text-decoration: underline; =
">http://lists.ovirt.org/mailman/listinfo/users</a><br></div></span></bloc=
kquote></div><br></body></html>=
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