[ovirt-users] botched 3.6 -> 4.0/1/2 upgrade, how to recover

2019-05-12 Thread Axel . Thimm
Hello,

an old 3.6 self-hosted one-system installation was half upgraded to 4.0 and I 
took on the task to continue upgrading it.

I managed to setup a new engine and upgraded step by step until 4.2 where the 
host needs to be upgraded. During that time the host was "non-responsive", but 
I though that this had to do with the upgrade process.

Upon trying to upgrade the host the setup broke to pieces. I tried to downgrade 
everything and restart the old engine to no avail. I now try the way forward to 
try to start the new engine or create a complete new one, I don;t care much 
about the old engine's inherited information - all I need to to resurrect the 
VMs again. At the end of the day the setup is supposed to migrate to a three 
system hyperconverged setup anyway.

How should I proceed to get a working state that fires up the VMs? Is it safe 
to install a hosted engine from scratch and reattach the domain? Probably the 
VM configuration will be lost and I will have to puzzle together the disks.

I still have the 3.6 engine's backup file, if that is of any help. Should I 
perhaps recreate a 4.0 engine with that file and try to continue from there?

I guess all information on which VMs are attached to which images etc are in 
the DB of the engine, so I either have to get this info off the 3.6 backup or 
wire them up again by inspection.

BTW this is not a pure ovirt, but an RHV with self-evaluation support, but I 
believe that any pure ovirt solution will apply.

Many thanks in advance.
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[ovirt-users] Re: OvfUpdateIntervalInMinutes restored to original value too early?

2019-05-12 Thread Andreas Elvers
You were right Simone. I used an older backup that I knew was just before I 
started with migrating the engine. I was able to restore that backup. I have 
now the engine on my gluster backed Cluster.

Thanks !
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[ovirt-users] Re: vGPU becomes very inefficient when I use it in ovirt instead of qemu-kvm

2019-05-12 Thread weizhengya16
In above, the "qemu-kvm" means I directly construct a virtual machine by 
virt-manager in server
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[ovirt-users] vGPU becomes very inefficient when I use it in ovirt instead of qemu-kvm

2019-05-12 Thread weizhengya16
We distribute vGpu in order to use it in virtual machines. I find the same type 
vGpu get differently performance in Ovirt and Qemu-kvm .

when I distribute a vGPU to Ovirt virtual machine,it's performance becomes very 
strange.Some games can run efficiently and  attach 200+ fps.However,in some 
other games,it's can't even attach 10 FPS.
But in Qemu-kvm,the vGpu's performance always efficiently,can run these games 
all in 200+fps. 
  
I've been stuck with this for weeks and I have to make it always runs 
efficiently. Can someone help me?Thank you very very very much
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