Proxmox 1.8 Cluster - Can I change the VMID of a VM on a slave?

[mylesw]

I have three Proxmox servers and I am trying to have them all set in a cluster. They all run PM 1.8 and I have two of them successfully linked together. The third one was installed and setup with about 4 VMs last year, and they unfortunately share common VMIDs with the master. I understand that if I add the third PM 1.8 box to the cluster, I will lose the VMs.

However in reading about this, I believe I can backup the VMs and then restore them under non-conflicting VMIDs to get this working. That will work fine for 3 of the 4 VMs on that server, but the first one is an IPCop Firewall (KVM) that we have working there and as that box is colocated in another state, I can't afford to lose connectivity to it.

So I'm wondering if there is any other way to change the VMID of a running VM on a PM1.8 server, so that I can add it to the cluster? I may be able to stop it for a short period of time, but I'm not sure if I will have the option to do a full backup of the VM.

Any thoughts are appreciated.

Thanks
Myles

 

[tom]

you can edit the vmid.conf files directly (see /etc/qemu-server/), you can also rename it. be careful. I suggest you poweroff the VM, make the changes and start again.

but test this on non production VM first.

 

[mylesw]

you can edit the vmid.conf files directly (see /etc/qemu-server/), you can also rename it. be careful. I suggest you poweroff the VM, make the changes and start again.
but test this on non production VM first.

Thank you, and I will follow your advice. Out of interest, is there a similar conf file for OpenVZ containers as well?

Myles

 

[tom]

container are different, see /etc/vz/conf/ and for the files, /var/lib/vz/private

 

[dietmar]

you can edit the vmid.conf files directly (see /etc/qemu-server/), you can also rename it. be careful.

You should also rename the disk image files if you go that way.

 

[eiger3970]

Hi,
I'm using Proxmox pve-manager/2.1-14/f32f3f46 with Kernel version Linux 2.6.32-14-pve #1 SMP.

I just tried /etc/qemu-server and there's no qemu-server folder?
I just tried etc/vz/conf and there's no vz folder?

I then go into the Proxmox node, rather than the VMs as above.
The /etc/qemu-server has no vmid.conf file?
The etc/vz/vz.conf doesn't seem to have any code to change the VMs' ID or IP addresses?

I can't change the VMs' ID as there's no option in the GUI neither?

I also can't delete some VMs I don't need.
I also can't migrate to another VM ID. Proxmox only migrates to other nodes and I only have 1.
I also can't backup. (I though I could then copy the backup from the old VM ID and paste into the new VM ID).

Help appreciated.

 

[tom]

wrong forum. pls post only once and only in the right forum.

 

[eiger3970]

Thanks for the help.

By the way, what is the right forum according to your expertise?

 

[tom]

this is the Proxmox VE 1.x forum. if you use latest 2.x you need to go the 2.x forum.