Hi, Afaik you can't move vm's between 2 datacenters, because it's storage is completely separated from each other. So what I would do is just create a new cluster with the new servers, but in the same datacenter so it shares it's storage domains with the current cluster. Then attach the netapp to the datacenter when received, and then you can migrate the storage to the netapp first and then shutdown the vm, move it from cluster, and boot it. Or you shutdown the vm first, move it to the new cluster, and do the storage migration to netapp there. Jean-Louis On 29/10/2024 16:28, gbigras--- via Users wrote:

My question will be down below but before that here is some background info:

I currently have a functioning oVirt env (v4.5.7) with two self-hosted nodes (hand-me-down servers) and shared storage (TrueNAS server) with three data domains: one for the EngineVM (iSCSI), one for the VMs (iSCSI) and one for ISO files (NFS).

The powers that be, want to move away from TrueNAS and hand-me-downs and have new servers and a new NAS appliance (most likely NetApp). They are the ones who did not want to spend the money on new gear but now they have changed their minds. I wish that I could have started my oVirt env on the new equipment. This new equipment will take at best 2 months to arrive. In the meantime, I have to create various VMs in my existing environment.

Once my new gear arrives, what is the recommended approach: 1 - Start from scratch with a new datacenter/cluster env? Can I migrate VMs from one DC to another? The docs seem to say no. I'm guessing, I would have to export first, then import. 2 - Can my new equipment be part of the same DC but a different cluster?

I was thinking that option #2 is the right approach. I could start with storage (ie: new NetApp) as part of the new cluster. Once that is part of the cluster, I can add hosts then finally migrate VMs.

What say you?

thank you in advance. _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/DO5CU6XHNJNQGL...

Hi There is one additional option you didn't realized: - Add new hosts to the same DC/Cluster and add the new NAS appliance as a second Storage Domain. This approach will make it easier to live migrate your running VMs to new hosts allowing you to power off old servers. Also, having the the new Storage Domain available, you can storage live migrate (move) all virtual disks from old TrueNas to the new device. Important: for the storage live migration, make sure the "Wipe after delete" option is not set at the virtual disk level and at the Storage Domain level. I saw some threads on an ovirt telegram group about corrupting virtual disks when these options are enabled. Anyway, from the options available (new deployment, new cluster on same deployment, adding hosts/storage to the existing deployment), my preferred is to create a new deployment from scratch, export existing VMs as OVA files, then import them on the new deployment. The benefit is to have everything still available in the old deployment, the down side is to have a downtime to run the export/import process. Marcos -----Original Message----- From: gbigras--- via Users <users@ovirt.org> Sent: Tuesday, October 29, 2024 12:28 PM To: users@ovirt.org Subject: [External] : [ovirt-users] Need advice before building a new oVirt Environment My question will be down below but before that here is some background info: I currently have a functioning oVirt env (v4.5.7) with two self-hosted nodes (hand-me-down servers) and shared storage (TrueNAS server) with three data domains: one for the EngineVM (iSCSI), one for the VMs (iSCSI) and one for ISO files (NFS). The powers that be, want to move away from TrueNAS and hand-me-downs and have new servers and a new NAS appliance (most likely NetApp). They are the ones who did not want to spend the money on new gear but now they have changed their minds. I wish that I could have started my oVirt env on the new equipment. This new equipment will take at best 2 months to arrive. In the meantime, I have to create various VMs in my existing environment. Once my new gear arrives, what is the recommended approach: 1 - Start from scratch with a new datacenter/cluster env? Can I migrate VMs from one DC to another? The docs seem to say no. I'm guessing, I would have to export first, then import. 2 - Can my new equipment be part of the same DC but a different cluster? I was thinking that option #2 is the right approach. I could start with storage (ie: new NetApp) as part of the new cluster. Once that is part of the cluster, I can add hosts then finally migrate VMs. What say you? thank you in advance. _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://urldefense.com/v3/__https://www.ovirt.org/privacy-policy.html__;!!AC... oVirt Code of Conduct: https://urldefense.com/v3/__https://www.ovirt.org/community/about/community-... List Archives: https://urldefense.com/v3/__https://lists.ovirt.org/archives/list/users@ovir...