Fail Over Configuration for VM in one Node

[gilang]

Hi all,,

- Is there any possible to create a Fail Over on one Node?
My Plan is a VM will be master and the other as a Slave

- If it is possible, does anyone have tutorial for that configuration on CentOS 7?

Thank you..

 

[dcsapak]

fail over for what?
when the host is down, where should the vm run?

if you mean for a service inside the vm, you have to configure your ha stack there and this has nothing to do with proxmox

if you want to test ha, what do you want to test exactly?

 

[guletz]

ucarp is one possible solution. It do not has any relation with proxmox. So you need to install ucarp in all proxmox vm, and the ucarp VIP IP will be allocated on master VM. If master VM is down, then the VIP ip will go to the slave VM.
Even more, I can say ucarp is working very well, at least for me But maybe a load-balancing and fail-over for master and slave VM will be better ... This can be donne, but depends of your performance target.

Good luck

 

[gilang]

fail over for what?
when the host is down, where should the vm run?

if you mean for a service inside the vm, you have to configure your ha stack there and this has nothing to do with proxmox

if you want to test ha, what do you want to test exactly?

Fail Over for the VM inside Proxmox..
My goals is, when the Master VM is shut down, Client still can access to the server, but the server is moved to slave server

ucarp is one possible solution. It do not has any relation with proxmox. So you need to install ucarp in all proxmox vm, and the ucarp VIP IP will be allocated on master VM. If master VM is down, then the VIP ip will go to the slave VM.
Even more, I can say ucarp is working very well, at least for me But maybe a load-balancing and fail-over for master and slave VM will be better ... This can be donne, but depends of your performance target.

Good luck

Thank you mate, I'll test on it