4:28 p.m.
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Thanks for the responses guys. Do we know why it's recommended to power th=
e VMs off and then move them to the new cluster? Especially if live migrat=
ion seems to work anyway.
From: matthew lagoe [mailto:matthew.lagoe@subrigo.net]
Sent: Thursday, August 20, 2015 3:25 PM
To: Groten, Ryan
Cc: users(a)ovirt.org
Subject: Re: [ovirt-users] Migrating hosts from RHEL6 to RHEL7
It is possible to migrate a VM from 6 to 7 it is recommended however that y=
ou don't do a live migration and that you power off the VM and then turn it=
back on on the cluster running version 7 "Groten, Ryan" wrote:
Has anyone succeeded in upgrading their hosts OS version from 6 to 7? I as=
sumed it could be done without downtime and one host at a time, but when tr=
ying it out I found that RHEL7 hosts can't be placed in the same Cluster as=
RHEL6 ones.
I then tried making a new Cluster and migrating VMs from the RHEL6 cluster =
to RHEL7. Initial testing seems to show that it works from RHEL6 to RHEL7 =
but not the other way around. Also when I select this option a warning pop=
s up saying "Choosing different cluster may lead to unexpected results. Pl=
ease consult documentation."
I looked in the Admin Guide and Technical Reference Guide but don't see whe=
re these unexpected results are mentioned.
Thanks,
Ryan Groten
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class=3D"WordSection1" <p
class=3D"MsoNormal"><span
style=3D"font-size:10.0pt;font-family:"Ce=
ntury Gothic","sans-serif";color:blue">Thanks for the
respon=
ses guys. Do we know why it’s recommended to power the VMs off =
and then move them to the new cluster? Especially if live migration
seems to work anyway.<o:p></o:p></span></p <p class=3D"MsoNormal"><a
name=3D"_MailEndCompose"><span style=3D"font-size=
:10.0pt;font-family:"Century
Gothic","sans-serif";color=
:blue"><o:p> </o:p></span></a></p <p class=3D"MsoNormal"><b><span
style=3D"font-size:10.0pt;font-family:"=
;Tahoma","sans-serif"">From:</span></b><span
style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">
matthew =
lagoe [mailto:matthew.lagoe@subrigo.net]
<br <b>Sent:</b> Thursday, August 20, 2015 3:25
PM<br <b>To:</b> Groten,
Ryan<br <b>Cc:</b>
users(a)ovirt.org<br <b>Subject:</b> Re:
[ovirt-users] Migrating hosts from RHEL6 to RHEL7<o:p><=
/o:p></span></p <p
class=3D"MsoNormal"><o:p> </o:p></p <p class=3D"MsoNormal">It is possible to
migrate a VM from 6 to 7 it is rec=
ommended however that you don't do a live migration and that you power off =
the VM and then turn it back on on the cluster running version 7 "Grot=
en, Ryan" wrote:
<o:p></o:p></p <p
class=3D"MsoNormal"><span
style=3D"font-size:10.0pt;font-family:"Ce=
ntury Gothic","sans-serif"">Has anyone succeeded in
upgradin=
g their hosts OS version from 6 to 7? I assumed it could be done with=
out downtime and one host at a time, but when trying it out I
found that RHEL7 hosts can’t be placed in the same Cluster as RHEL6 =
ones. </span <o:p></o:p></p <p class=3D"MsoNormal"><span
style=3D"font-size:10.0pt;font-family:"Ce=
ntury Gothic","sans-serif"">I then tried making a new
Cluste=
r and migrating VMs from the RHEL6 cluster to RHEL7. Initial testing =
seems to show that it works from RHEL6 to RHEL7 but not the other
way around. Also when I select this option a warning pops up saying =
“Choosing different cluster may lead to unexpected results. Ple=
ase consult documentation.”</span><o:p></o:p></p <p class=3D"MsoNormal"><span
style=3D"font-size:10.0pt;font-family:"Ce=
ntury
Gothic","sans-serif""> </span><o:p></o:p></p <p class=3D"MsoNormal"><span
style=3D"font-size:10.0pt;font-family:"Ce=
ntury Gothic","sans-serif"">I looked in the Admin Guide
and =
Technical Reference Guide but don’t see where these unexpected result=
s are mentioned.</span><o:p></o:p></p <p
class=3D"MsoNormal"><span
style=3D"font-size:10.0pt;font-family:"Ce=
ntury
Gothic","sans-serif""> </span><o:p></o:p></p <p class=3D"MsoNormal"><span
style=3D"font-size:10.0pt;font-family:"Ce=
ntury
Gothic","sans-serif"">Thanks,</span><o:p></o:p></p <p class=3D"MsoNormal"><span
style=3D"font-size:10.0pt;font-family:"Ce=
ntury Gothic","sans-serif"">Ryan
Groten</span><o:p></o:p></p=
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