Reasorces on shutdown and suspended vms
by admin＠foundryserver.com
I assume that when we shutdown a vm, the cpu and memory are released back to the host. My question is about a linux vm that has been suspended or put into hibernate mode, what happens to the allocated resources?
Another question I have is about adding a user to the vm during the creation process. is that possible?
thanks for helping out
Brad
2 years, 5 months
How to swap VM from one state to another and back?
by xtripx＠centrum.cz
Hi everybody. We are trying to transfer our project from using VMware vCenter to oVirt. Everything looks good, but when it comes to snapshots there is a quite big difference. In current application we are using VM snapshots to switch the VM from one state to another.
Each VM has it's initial snapshot (we can go back anytime we need), but it can also have several additional snapshots with some VM modifications (like applications added or so). We are able to go from one state to another using "revert to snapshot" function served by vCenter.
What I understand this is not possible in oVirt. If I revert from newer snapshot to older one all snapshots that were created after the older one will get deleted. I understand the reason (having one base file and having only diffs per each snapshot) and here comes the question...
What would be the best solution to simulate this vCenter option? To be able to quickly swap from one state to another (and back of course) on one particular VM?
Thanks in advance!
Trip
2 years, 5 months
Looking for paid support long term
by vip＠ahit.be
Hi
We are a server building company, we already supply 2-3 high availability storage clusters/virtualization per month based on commercial/paid software.
For lower end clients we like to use oVirt hyperconverged, would like support/share knowledge with my team.
I have a team of 5 technicians who need training.
First we need help setting up a virtual oVirt cluster. Once this works, we will test performance/stability/features/....
If we're happy with the solution, my team needs training and also if we encounter a very difficult issue we would like to have a paid support channel.
I would prefer a partner who has at least 3 engineers [ holidays etc ]. Do you have a lot of experience with your team, please PM me.
Thanks.
2 years, 5 months
Securing virtual machines
by David Johnson
Greetings all,
Is there a good guide for securing the ovirt system (hosts, controller,
VM's) via hardware based 2 level authentication, such as Yubikeys?
Thank you in advance.
*David Johnson*
2 years, 5 months
Grafana Engine
by Jorge Visentini
Hi all!!
Is it possible to disable the Grafana server on Engine?
I would like to use Granafa in other server.
Até.
--
Att,
Jorge Visentini
+55 55 98432-9868
2 years, 5 months
TPM 2.0 Support in Ovirt
by bob.franzke＠mdaemon.com
Need to deploy a VM of a Windows 11 guest. Windows 11 requires TPM 2.0 support for it to be able to install. Does Ovirt support TPM devices somehow and if so how do I present the VM with a TPM device that can be detected by the Windows 11 setup installer? Thanks in advance for any help here.
2 years, 5 months
Re: Installing Windows 4.4.9/Change CD
by Nir Soffer
On Thu, Oct 21, 2021 at 7:11 PM Matt Schuler <mschuler(a)bsgtech.com> wrote:
>
> Just wondering if it is possible to install windows on the 4.4.9? (I am running 4.4.9 and node 4.4.8, I don’t node is built yet for .9)
>
>
>
> The issue I am having is changing CDs, when I try to change it get the following error: (Both ISOs are uploaded though the GUI on block storage, iSCSI)
...
> ERROR FINISH changeCD error=Failed to change disk image
>
> Traceback (most recent call last):
>
> File "/usr/lib/python3.6/site-packages/vdsm/virt/vm.py", line 5005, in _update_disk_device
>
> disk_xml, libvirt.VIR_DOMAIN_DEVICE_MODIFY_FORCE)
>
> File "/usr/lib/python3.6/site-packages/vdsm/virt/virdomain.py", line 101, in f
>
> ret = attr(*args, **kwargs)
>
> File "/usr/lib/python3.6/site-packages/vdsm/common/libvirtconnection.py", line 131, in wrapper
>
> ret = f(*args, **kwargs)
>
> File "/usr/lib/python3.6/site-packages/vdsm/common/function.py", line 94, in wrapper
>
> return func(inst, *args, **kwargs)
>
> File "/usr/lib64/python3.6/site-packages/libvirt.py", line 3237, in updateDeviceFlags
>
> raise libvirtError('virDomainUpdateDeviceFlags() failed')
>
> libvirt.libvirtError: internal error: unable to execute QEMU command 'blockdev-add': 'file' driver requires '/rhev/data-center/mnt/blockSD/XX/images/XX/XX' to be a regular file
This is https://bugzilla.redhat.com/1990268
It is fixed in:
$ git describe 6094e672781f593767dc313ebd53d23334511f5a
v4.40.90.1-7-g6094e6727
You need to upgrade vdsm.
The only workaround for now is to use a file based storage domain
(e.g. NFS) for the ISO
images.
When the issue is fixed, you can copy the ISO disks to another storage
domain, and remove
the file based domain.
Nir
2 years, 6 months
