How do the Proxmox calculate the resource of Node in HA-cluster?

[Quốc Hưởng]

I have 5-node proxmox in HA cluster. I wanna know how do the proxmox calculate the resource of Node?
Example when my 1st node down, the VM move to the highest-priority node. So when do the VM move to the next-priority node ? ( 80% RAM or 80% CPU of highest-priority node are used, etc....)
Thanks for reading this post, have a good day

 

[dcsapak]

vms do not move around based on resources
if a node goes down, it gets relocated (like you wrote)
but aside from that, no automatic moving happens (as of now)

 

[Quốc Hưởng]

Zz I dont understand your meaning.
When i set a node to highest Priority, all VMs will move to this node first. If highest priority node is out of resource, the remaining VMs in the down-node must move to the others node. Right?
So when do the VMs move to others node?

Example:
1: Down-node ( 3 VMs)
2: 2 VMs from Down-node move to this, then out of resources
3: 1 Last VM will move to this

 

[dcsapak]

you can control this with the 'max restart' and 'max relocate' options per service
the 'max restart' option says how often the ha-manager tries to start the vm on a node before it gives up there
and 'max relocate' says how many different hosts it should try

so if one node is down and 3 vms need to be relocated
it start them on the one with the highest priority in the ha group
if a vm cannot be started there 'max restart' times
then the next host will be tried
and this for 'max relocate' times