Peculiar Problem in migrating storage from one to another domain
by Anantha Raghava
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Hi,
I had created a Windows VM accidentally with storage in EXPORT_DOMAIN
rather than using a specified MASTER_STORAGE Domain built on iSCSI
storage. Realising the mistake, I moved the VM's disk from EXPORT_DOMAIN
to MASTER_STORAGE domain. The engine reported that disk moved
successfully. When I attempted to start the VM, I am getting error
"Cannot start VM, related operation is in progress". This error has
persisted over last 24 Hours!!. I attempted to remove the disk from VM,
same error appears. When I try to delete disk from MASTER_STORAGE
Domain, same error appears.
What could have gone wrong in this disk movement?
I am using oVirt 4.0.2 on CentOS 7 and 2 hosts in the cluster are also
with CentOS 7 base OS on which the Hypervisor is installed.
--
Thanks & Regards,
Anantha Raghava
eXza Technology Consulting & Services
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<p>Hi,</p>
<p>I had created a Windows VM accidentally with storage in
EXPORT_DOMAIN rather than using a specified MASTER_STORAGE Domain
built on iSCSI storage. Realising the mistake, I moved the VM's
disk from EXPORT_DOMAIN to MASTER_STORAGE domain. The engine
reported that disk moved successfully. When I attempted to start
the VM, I am getting error "Cannot start VM, related operation is
in progress". This error has persisted over last 24 Hours!!. I
attempted to remove the disk from VM, same error appears. When I
try to delete disk from MASTER_STORAGE Domain, same error appears.</p>
<p>What could have gone wrong in this disk movement?</p>
<p>I am using oVirt 4.0.2 on CentOS 7 and 2 hosts in the cluster are
also with CentOS 7 base OS on which the Hypervisor is installed.<br>
</p>
--<br>
<div class="moz-signature"><br>
<p style="margin-bottom: 0cm; line-height: 100%"><font face="Times
New Roman, serif">Thanks
& Regards,</font></p>
<p style="margin-bottom: 0cm; line-height: 100%"><br>
</p>
<address style="line-height: 100%"><font face="Times New Roman,
serif">Anantha
Raghava</font></address>
<address style="line-height: 100%"><font face="Times New Roman,
serif">eXza
Technology Consulting & Services</font></address>
<br>
<p style="margin-bottom: 0cm; line-height: 100%"><font
color="#66cc00"><font face="Times New Roman, serif">Do
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7 years, 7 months
Migrating from KVM to oVirt
by Logan Kuhn
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Our current infrastructure is as follows:
KVM managed with NFS exported raw files.
We are planning on moving to ovirt, but we want to move our disk images into Ceph via Cinder is this possible and if so, how?
Regards,
Logan
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<html><body><div style="font-family: Arial; font-size: 12pt; color: #000000"><div>Our current infrastructure is as follows:<br></div><div><br data-mce-bogus="1"></div><div>KVM managed with NFS exported raw files.</div><div><br data-mce-bogus="1"></div><div>We are planning on moving to ovirt, but we want to move our disk images into Ceph via Cinder is this possible and if so, how?</div><div><br></div><div data-marker="__SIG_PRE__">Regards,<br>Logan</div></div></body></html>
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7 years, 7 months
Testing oVirt 4.0.3 and 4.0.4 RC3 on nested KVM
by wodel youchi
Hi,
I am testing the deployment of oVirt using ovirt-node next-gen and ovirt
appliance on a nested KVM environment.
My base system (the physical machine) is a FC24 with 16Go of RAM and nested
KVM enabled.
I used NFS for storage.
Test with oVirt 4.0.3:
- I created two hypervisors 5Go of RAM each and 4vCpu.
- I installed ovirt-node next-gen OS.
- I downloaded ovirt appliance and started the engine deploy using
generated configuration from cloud-init (I reserved 2Go of RAM for the
VM-engine).
Problems :
- I couldn't add the second hypervisor from the engine's GUI, when I tried
to do it, ovirt-engine crashed.
- I tried with the command line, the process terminated with errors.
- There is no create a new ISO or Export domain only Data domain in the
select list.
Unfortunately I deleted the two hypervisors.
Test with oVirt 4.0.4 RC3 :
- I created two hypervisors 5Go of RAM each and 4vCpu.
- I installed ovirt-node next-gen OS.
- I downloaded ovirt appliance and started the engine deploy using
generated configuration from cloud-init (I reserved 2Go of RAM for the
VM-engine).
Problems:
- I couldn't add the second hypervisor from the engine's GUI, when I tried
to do it, ovirt-engine crashed.
- After adding the Data domain, the hosted_storage was added successfully,
but the VM engine was not imported successfully, it's does not appear on
the VMs tab.
- There is no create a new ISO or Export domain only Data domain in the
select list.
- I added the second hypervisor from the command line successfully.
- I tried to put the first hypervisor in maintenance mode, migration of the
VM engine was started, from the command line I could see that the VM is
running on the second hypervisor, but the migration process didn't
terminate, I tried to reactivate the first hypervisor and put it in
maintenance mode again, this time the ovirt-engine crashed.
Regards.
7 years, 7 months
Nested oVirt : Unofficial network recommendations wanted
by Nicolas Ecarnot
Hello,
I'm trying to setup a nested oVirt for the first time, and according to
what I read around and experience, some special network settings have to
be chosen.
For this first try, the bare-metal host is a Debian, running KVM, and
the virtual NICs are setup as macvtap in VEPA mode.
I'm not up to date with macvtap, but I think I understood that one of
its limit was that no packet could be exchanged between the host and the
guests. So far, this is leading me to access my own local VMs from
another host. Too bad.
I'm also witnessing frequent loss of packets.
So far, I'm also seeing that guests can not ping each others, so I'm not
going further before having solved these basic issues.
I'm remembering the good old times of lots of bridges where my VMs could
be reached by anyone (this was desired), but virt manager is not
offering me this choice. I also would like to avoid NAT for other reasons.
To you all (4) people who are playing with nested oVirt :
- which is your preferred bare metal OS?
- which is your preferred guest (first virt level) OS?
- which network setups and modes are working best?
Thank you.
--
Nicolas ECARNOT
7 years, 7 months
how to create vm from snapshot via ovirt-shell (ovirt 4.0)
by csyeow
Hi ovirt expertise
i am new to ovirt, i now start install and play around.
i unable find any doc from web site to create vm from snapshot via
ovirt-shell (ovirt 4.0) , any help on this.
i mange to create vm from snapshot via webui
i would like to perform backup vm via api by using ovirt-shell. i have
totally no knowledge on python
ideal as below:
create snapshot
#add snapshot --parent-vm-name "rhel6.8_server02" --description 'my
snapshot'
create vm from snapshot
## missing, need help
del snapshot
# remove snapshot "597e550e-1285-46a0-86a3-6170791bc72d" --parent-vm-name
"rhel6.8_server02"
export vm to export domain
## missing , need help
del vm
# remove vm --parent-vm-name "rhel6.8_server02-snapshot"
regards
csyeow
7 years, 7 months
Import Glance images in oVirt 4.0
by Davide Ferrari
Hello
all the guides/helps/howto I can find about importing OpenStack Glance's
iamges into ovirt relies on 3.x version and on the "ovirt-image-repository"
present as a storage domain. But in 4.0 I can only see it as an expternal
provider and there's no way to add it a storage domain (I can only add
"Data" domains). So, how can I import existing images into my oVirt 4.0
installation?
Thanks
--
Davide Ferrari
Senior Systems Engineer
7 years, 7 months
Upgrade Problems from 3.6 to 4.0.3
by Michael Wagenknecht
Hello,
I try to upgrade my ovirt engine from 3.6.7.5 to 4.0.3.
When I start engine-setup I get the following message:
"Failed to execute stage 'Setup validation': Trying to upgrade from
unsupported versions: 3.5"
My management client is a virtual CentOS 7.2 machine.
I also tried the ovirt-engine migration from 3.6 to 4.0 on a new
installed CentOS 7.2 machine. I got the same message.
Attached is the engine-setup log.
Regards,
Michael
7 years, 7 months
Changing Hosted Engine destEmail
by Simon Hallam
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Hi,
I'm curious how we can change the email addresses that the hosted-engine-ha=
system sends it's notifications to (this is on oVirt 3.6)?
Cheers,
Simon Hallam
Network Development & Linux Support Officer
Please visit our new website at www.pml.ac.uk and follow us on Twitter @Ply=
mouthMarine
Winner of the Environment & Conservation category, the Charity Awards 2014.
Plymouth Marine Laboratory (PML) is a company limited by guarantee register=
ed in England & Wales, company number 4178503. Registered Charity No. 10912=
22. Registered Office: Prospect Place, The Hoe, Plymouth PL1 3DH, UK.=20
This message is private and confidential. If you have received this message=
in error, please notify the sender and remove it from your system. You are=
reminded that e-mail communications are not secure and may contain viruses=
; PML accepts no liability for any loss or damage which may be caused by vi=
ruses.
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<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I’m curious how we can change the email addres=
ses that the hosted-engine-ha system sends it’s notifications to (thi=
s is on oVirt 3.6)?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Cheers,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-GB">Simon Hal=
lam<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-GB">Network D=
evelopment & Linux Support Officer<o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<PRE>
Please visit our new website at www.pml.ac.uk and follow us on Twitter @Ply=
mouthMarine
Winner of the Environment & Conservation category, the Charity Awards 2014.
Plymouth Marine Laboratory (PML) is a company limited by guarantee register=
ed in England & Wales, company number 4178503. Registered Charity No. 10912=
22. Registered Office: Prospect Place, The Hoe, Plymouth PL1 3DH, UK.=20
This message is private and confidential. If you have received this message=
in error, please notify the sender and remove it from your system. You are=
reminded that e-mail communications are not secure and may contain viruses=
; PML accepts no liability for any loss or damage which may be caused by vi=
ruses.
</PRE></body>
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--_000_8F5D1BC1709CC8409AF193502487938781490E14harrisnpmacuk_--
7 years, 7 months
live migration with openvswitch
by Pavel Levshin
Hi.
I'm trying to learn Ovirt 4 and have a problem with it.
My cluster consists of 3 nodes. I use Openvswitch for network
connectivity. I have a HostedEngine and one additional VM in the cluster.
When I try to migrate the VM to another node, it fails. From vdsm and
libvirtd logs I see that proper network interface on destination node
cannot be found. Libvirt tries to find Openvswitch bridge with name like
"vdsmbr_AOYiPtcT". It exists on source node, but it is unique on every
node, because it contains random part. Additionally, it changes on every
reboot.
How this is supposed to work?
--
Pavel Levshin
7 years, 7 months
